20704467508 has 12 divisors (see below), whose sum is σ = 36250193952. Its totient is φ = 10347269240.

The previous prime is 20704467491. The next prime is 20704467547. The reversal of 20704467508 is 80576440702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231738 + ... + 1248433.

It is an arithmetic number, because the mean of its divisors is an integer number (3020849496).

Almost surely, 2^20704467508 is an apocalyptic number.

It is an amenable number.

20704467508 is a deficient number, since it is larger than the sum of its proper divisors (15545726444).

20704467508 is a wasteful number, since it uses less digits than its factorization.

20704467508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482262 (or 2482260 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 20704467508 in words is "twenty billion, seven hundred four million, four hundred sixty-seven thousand, five hundred eight".