64157031847412 has 48 divisors (see below), whose sum is σ = 131911992619008. Its totient is φ = 26732634616800.

The previous prime is 64157031847369. The next prime is 64157031847427. The reversal of 64157031847412 is 21474813075146.

It is a super-2 number, since 2×64157031847412² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161230238 + ... + 161627669.

It is an arithmetic number, because the mean of its divisors is an integer number (2748166512896).

Almost surely, 2^{64157031847412} is an apocalyptic number.

It is an amenable number.

64157031847412 is an abundant number, since it is smaller than the sum of its proper divisors (67754960771596).

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

64157031847412 is a wasteful number, since it uses less digits than its factorization.

64157031847412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322858116 (or 322858114 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 64157031847412 in words is "sixty-four trillion, one hundred fifty-seven billion, thirty-one million, eight hundred forty-seven thousand, four hundred twelve".