20912568462 has 48 divisors (see below), whose sum is σ = 50500953360. Its totient is φ = 6215498496.

The previous prime is 20912568403. The next prime is 20912568497. The reversal of 20912568462 is 26486521902.

20912568462 is a `hidden beast` number, since 2 + 0 + 9 + 125 + 68 + 462 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1792653 + ... + 1804280.

It is an arithmetic number, because the mean of its divisors is an integer number (1052103195).

Almost surely, 2^20912568462 is an apocalyptic number.

20912568462 is an abundant number, since it is smaller than the sum of its proper divisors (29588384898).

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

20912568462 is a wasteful number, since it uses less digits than its factorization.

20912568462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596977 (or 3596974 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 20912568462 in words is "twenty billion, nine hundred twelve million, five hundred sixty-eight thousand, four hundred sixty-two".