1992789602244 has 729 divisors, whose sum is σ = 6511720031271. Its totient is φ = 512263906560.

The previous prime is 1992789602231. The next prime is 1992789602249. The reversal of 1992789602244 is 4422069872991.

The square root of 1992789602244 is 1411662.

It is a perfect power (a square), and thus also a powerful number.

1992789602244 is a `hidden beast` number, since 19 + 9 + 2 + 7 + 8 + 9 + 602 + 2 + 4 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 597934120644 + 1394855481600 = 773262^2 + 1181040^2 .

It is a super-3 number, since 3×1992789602244³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1992789602249) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 32668681974 + ... + 32668682034.

Almost surely, 2^{1992789602244} is an apocalyptic number.

1992789602244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1992789602244 is the 1411662-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992789602244

1992789602244 is an abundant number, since it is smaller than the sum of its proper divisors (4518930429027).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992789602244 is a wasteful number, since it uses less digits than its factorization.

1992789602244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 1992789602244 in words is "one trillion, nine hundred ninety-two billion, seven hundred eighty-nine million, six hundred two thousand, two hundred forty-four".