20374940872 has 64 divisors (see below), whose sum is σ = 46429588800. Its totient is φ = 8254122240.

The previous prime is 20374940863. The next prime is 20374940899. The reversal of 20374940872 is 27804947302.

It is a super-2 number, since 2×20374940872² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273898 + ... + 340249.

It is an arithmetic number, because the mean of its divisors is an integer number (725462325).

Almost surely, 2^20374940872 is an apocalyptic number.

20374940872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20374940872 is an abundant number, since it is smaller than the sum of its proper divisors (26054647928).

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

20374940872 is a wasteful number, since it uses less digits than its factorization.

20374940872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614206 (or 614202 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 20374940872 in words is "twenty billion, three hundred seventy-four million, nine hundred forty thousand, eight hundred seventy-two".