1992492312720 has 640 divisors, whose sum is σ = 8151318282240. Its totient is φ = 390650757120.

The previous prime is 1992492312691. The next prime is 1992492312749. The reversal of 1992492312720 is 272132942991.

It is an interprime number because it is at equal distance from previous prime (1992492312691) and next prime (1992492312749).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 29297155 + ... + 29365085.

It is an arithmetic number, because the mean of its divisors is an integer number (12736434816).

Almost surely, 2^{1992492312720} is an apocalyptic number.

1992492312720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992492312720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4075659141120).

1992492312720 is an abundant number, since it is smaller than the sum of its proper divisors (6158825969520).

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

1992492312720 is a wasteful number, since it uses less digits than its factorization.

1992492312720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68063 (or 68057 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 1992492312720 in words is "one trillion, nine hundred ninety-two billion, four hundred ninety-two million, three hundred twelve thousand, seven hundred twenty".