20692403952 has 40 divisors (see below), whose sum is σ = 58314958080. Its totient is φ = 6270425280.

The previous prime is 20692403923. The next prime is 20692403989. The reversal of 20692403952 is 25930429602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19594552 + ... + 19595607.

It is an arithmetic number, because the mean of its divisors is an integer number (1457873952).

Almost surely, 2^20692403952 is an apocalyptic number.

20692403952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20692403952 is an abundant number, since it is smaller than the sum of its proper divisors (37622554128).

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

20692403952 is a wasteful number, since it uses less digits than its factorization.

20692403952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39190181 (or 39190175 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 20692403952 in words is "twenty billion, six hundred ninety-two million, four hundred three thousand, nine hundred fifty-two".