64537112750172 has 24 divisors (see below), whose sum is σ = 150792035177616. Its totient is φ = 21483022522368.

The previous prime is 64537112750171. The next prime is 64537112750191. The reversal of 64537112750172 is 27105721173546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64537112750171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3668540133 + ... + 3668557724.

It is an arithmetic number, because the mean of its divisors is an integer number (6283001465734).

Almost surely, 2^{64537112750172} is an apocalyptic number.

It is an amenable number.

64537112750172 is an abundant number, since it is smaller than the sum of its proper divisors (86254922427444).

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

64537112750172 is a wasteful number, since it uses less digits than its factorization.

64537112750172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337098597 (or 7337098595 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 64537112750172 in words is "sixty-four trillion, five hundred thirty-seven billion, one hundred twelve million, seven hundred fifty thousand, one hundred seventy-two".