64667272910 has 96 divisors (see below), whose sum is σ = 125747445600. Its totient is φ = 23935582208.

The previous prime is 64667272909. The next prime is 64667272937. The reversal of 64667272910 is 1927276646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61646066 + ... + 61647114.

It is an arithmetic number, because the mean of its divisors is an integer number (1309869225).

Almost surely, 2^64667272910 is an apocalyptic number.

64667272910 is a deficient number, since it is larger than the sum of its proper divisors (61080172690).

64667272910 is a wasteful number, since it uses less digits than its factorization.

64667272910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 64667272910 in words is "sixty-four billion, six hundred sixty-seven million, two hundred seventy-two thousand, nine hundred ten".