64570834441272 has 32 divisors (see below), whose sum is σ = 161511735974400. Its totient is φ = 21512324830944.

The previous prime is 64570834441261. The next prime is 64570834441349. The reversal of 64570834441272 is 27214443807546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705368872 + ... + 705460407.

It is an arithmetic number, because the mean of its divisors is an integer number (5047241749200).

Almost surely, 2^{64570834441272} is an apocalyptic number.

It is an amenable number.

64570834441272 is an abundant number, since it is smaller than the sum of its proper divisors (96940901533128).

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

64570834441272 is a wasteful number, since it uses less digits than its factorization.

64570834441272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410831195 (or 1410831191 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 57.

The spelling of 64570834441272 in words is "sixty-four trillion, five hundred seventy billion, eight hundred thirty-four million, four hundred forty-one thousand, two hundred seventy-two".