64702596442 has 12 divisors (see below), whose sum is σ = 106679074698. Its totient is φ = 29410271000.

The previous prime is 64702596403. The next prime is 64702596449. The reversal of 64702596442 is 24469520746.

It can be written as a sum of positive squares in only one way, i.e., 49084845601 + 15617750841 = 221551^2 + 124971^2 .

It is a super-2 number, since 2×64702596442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64702596449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133682809 + ... + 133683292.

Almost surely, 2^64702596442 is an apocalyptic number.

64702596442 is a deficient number, since it is larger than the sum of its proper divisors (41976478256).

64702596442 is a wasteful number, since it uses less digits than its factorization.

64702596442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267366125 (or 267366114 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 64702596442 in words is "sixty-four billion, seven hundred two million, five hundred ninety-six thousand, four hundred forty-two".