20734155862 has 32 divisors (see below), whose sum is σ = 36452160000. Its totient is φ = 8841354984.

The previous prime is 20734155833. The next prime is 20734155877. The reversal of 20734155862 is 26855143702.

It is a congruent number.

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, 60573 + ... + 212455.

It is an arithmetic number, because the mean of its divisors is an integer number (1139130000).

Almost surely, 2^20734155862 is an apocalyptic number.

20734155862 is a deficient number, since it is larger than the sum of its proper divisors (15718004138).

20734155862 is a wasteful number, since it uses less digits than its factorization.

20734155862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152105 (or 152091 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 20734155862 in words is "twenty billion, seven hundred thirty-four million, one hundred fifty-five thousand, eight hundred sixty-two".