637147546852 has 6 divisors (see below), whose sum is σ = 1115008206998. Its totient is φ = 318573773424.

The previous prime is 637147546807. The next prime is 637147546913. The reversal of 637147546852 is 258645741736.

It can be written as a sum of positive squares in only one way, i.e., 355817022016 + 281330524836 = 596504^2 + 530406^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79643443353 + ... + 79643443360.

Almost surely, 2^637147546852 is an apocalyptic number.

It is an amenable number.

637147546852 is a deficient number, since it is larger than the sum of its proper divisors (477860660146).

637147546852 is a wasteful number, since it uses less digits than its factorization.

637147546852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159286886717 (or 159286886715 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 58.

The spelling of 637147546852 in words is "six hundred thirty-seven billion, one hundred forty-seven million, five hundred forty-six thousand, eight hundred fifty-two".