20857737462 has 16 divisors (see below), whose sum is σ = 41899246272. Its totient is φ = 6921950600.

The previous prime is 20857737451. The next prime is 20857737497. The reversal of 20857737462 is 26473775802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7655664 + ... + 7658387.

It is an arithmetic number, because the mean of its divisors is an integer number (2618702892).

Almost surely, 2^20857737462 is an apocalyptic number.

20857737462 is an abundant number, since it is smaller than the sum of its proper divisors (21041508810).

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

20857737462 is a wasteful number, since it uses less digits than its factorization.

20857737462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15314283.

The product of its (nonzero) digits is 3951360, while the sum is 51.

The spelling of 20857737462 in words is "twenty billion, eight hundred fifty-seven million, seven hundred thirty-seven thousand, four hundred sixty-two".