64947877310 has 16 divisors (see below), whose sum is σ = 119393545536. Its totient is φ = 25426402848.

The previous prime is 64947877297. The next prime is 64947877373. The reversal of 64947877310 is 1377874946.

It is a super-2 number, since 2×64947877310² (a number of 22 digits) contains 22 as substring.

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, 69093017 + ... + 69093956.

It is an arithmetic number, because the mean of its divisors is an integer number (7462096596).

Almost surely, 2^64947877310 is an apocalyptic number.

64947877310 is a deficient number, since it is larger than the sum of its proper divisors (54445668226).

64947877310 is a wasteful number, since it uses less digits than its factorization.

64947877310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138187027.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 64947877310 in words is "sixty-four billion, nine hundred forty-seven million, eight hundred seventy-seven thousand, three hundred ten".