19740979092 has 24 divisors (see below), whose sum is σ = 46066033216. Its totient is φ = 6579790848.

The previous prime is 19740979039. The next prime is 19740979099. The reversal of 19740979092 is 29097904791.

It is a super-2 number, since 2×19740979092² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19740979099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104148 + ... + 224340.

Almost surely, 2^19740979092 is an apocalyptic number.

19740979092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19740979092 is an abundant number, since it is smaller than the sum of its proper divisors (26325054124).

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

19740979092 is a wasteful number, since it uses less digits than its factorization.

19740979092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133887 (or 133885 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 57.

The spelling of 19740979092 in words is "nineteen billion, seven hundred forty million, nine hundred seventy-nine thousand, ninety-two".