64157046837 has 32 divisors (see below), whose sum is σ = 96232136448. Its totient is φ = 37723885056.

The previous prime is 64157046799. The next prime is 64157046857. The reversal of 64157046837 is 73864075146.

It is a happy number.

64157046837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64157046837 - 2²³ = 64148658229 is a prime.

It is a super-2 number, since 2×64157046837² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64157046837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64157046857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802323 + ... + 878655.

It is an arithmetic number, because the mean of its divisors is an integer number (3007254264).

Almost surely, 2^64157046837 is an apocalyptic number.

It is an amenable number.

64157046837 is a deficient number, since it is larger than the sum of its proper divisors (32075089611).

64157046837 is a wasteful number, since it uses less digits than its factorization.

64157046837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77309.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 64157046837 in words is "sixty-four billion, one hundred fifty-seven million, forty-six thousand, eight hundred thirty-seven".