64157031253172 has 24 divisors (see below), whose sum is σ = 131903267053152. Its totient is φ = 26919034092000.

The previous prime is 64157031253121. The next prime is 64157031253193. The reversal of 64157031253172 is 27135213075146.

64157031253172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×64157031253172³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56081320454 + ... + 56081321597.

It is an arithmetic number, because the mean of its divisors is an integer number (5495969460548).

Almost surely, 2^{64157031253172} is an apocalyptic number.

It is an amenable number.

64157031253172 is an abundant number, since it is smaller than the sum of its proper divisors (67746235799980).

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

64157031253172 is a wasteful number, since it uses less digits than its factorization.

64157031253172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112162642079 (or 112162642077 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 64157031253172 in words is "sixty-four trillion, one hundred fifty-seven billion, thirty-one million, two hundred fifty-three thousand, one hundred seventy-two".