1982392774380 has 144 divisors (see below), whose sum is σ = 6022815472128. Its totient is φ = 527798592000.

The previous prime is 1982392774379. The next prime is 1982392774381. The reversal of 1982392774380 is 834772932891.

1982392774380 is a `hidden beast` number, since 1 + 98 + 23 + 92 + 7 + 7 + 438 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1982392774379) and next prime (1982392774381).

It is a super-2 number, since 2×1982392774380² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1982392774381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 584602485 + ... + 584605875.

Almost surely, 2^{1982392774380} is an apocalyptic number.

1982392774380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1982392774380 is an abundant number, since it is smaller than the sum of its proper divisors (4040422697748).

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

1982392774380 is a wasteful number, since it uses less digits than its factorization.

1982392774380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608 (or 7603 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 1982392774380 in words is "one trillion, nine hundred eighty-two billion, three hundred ninety-two million, seven hundred seventy-four thousand, three hundred eighty".