20602397892 has 48 divisors (see below), whose sum is σ = 48843083520. Its totient is φ = 6757573152.

The previous prime is 20602397891. The next prime is 20602397909. The reversal of 20602397892 is 29879320602.

It is not an unprimeable number, because it can be changed into a prime (20602397891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747859 + ... + 774917.

It is an arithmetic number, because the mean of its divisors is an integer number (1017564240).

Almost surely, 2^20602397892 is an apocalyptic number.

It is an amenable number.

20602397892 is an abundant number, since it is smaller than the sum of its proper divisors (28240685628).

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

20602397892 is a wasteful number, since it uses less digits than its factorization.

20602397892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28080 (or 28078 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 20602397892 in words is "twenty billion, six hundred two million, three hundred ninety-seven thousand, eight hundred ninety-two".