51457013622 has 24 divisors (see below), whose sum is σ = 127417367376. Its totient is φ = 14702003856.

The previous prime is 51457013579. The next prime is 51457013627. The reversal of 51457013622 is 22631075415.

51457013622 is a `hidden beast` number, since 5 + 14 + 5 + 7 + 0 + 13 + 622 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51457013627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204194373 + ... + 204194624.

It is an arithmetic number, because the mean of its divisors is an integer number (5309056974).

Almost surely, 2^51457013622 is an apocalyptic number.

51457013622 is an abundant number, since it is smaller than the sum of its proper divisors (75960353754).

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

51457013622 is a wasteful number, since it uses less digits than its factorization.

51457013622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408389012 (or 408389009 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 51457013622 in words is "fifty-one billion, four hundred fifty-seven million, thirteen thousand, six hundred twenty-two".