64786677668746 has 64 divisors (see below), whose sum is σ = 113399081364096. Its totient is φ = 27432857344000.

The previous prime is 64786677668701. The next prime is 64786677668749.

64786677668746 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (64786677668749) 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, 116179086 + ... + 116735398.

It is an arithmetic number, because the mean of its divisors is an integer number (1771860646314).

Almost surely, 2^{64786677668746} is an apocalyptic number.

64786677668746 is a deficient number, since it is larger than the sum of its proper divisors (48612403695350).

64786677668746 is a wasteful number, since it uses less digits than its factorization.

64786677668746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559527.

The product of its digits is 114709561344, while the sum is 88.

The spelling of 64786677668746 in words is "sixty-four trillion, seven hundred eighty-six billion, six hundred seventy-seven million, six hundred sixty-eight thousand, seven hundred forty-six".