64900950779 has 16 divisors (see below), whose sum is σ = 80451112896. Its totient is φ = 51080064000.

The previous prime is 64900950757. The next prime is 64900950839. The reversal of 64900950779 is 97705900946.

It is not a de Polignac number, because 64900950779 - 2⁸ = 64900950523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64900950739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6646172 + ... + 6655929.

It is an arithmetic number, because the mean of its divisors is an integer number (5028194556).

Almost surely, 2^64900950779 is an apocalyptic number.

64900950779 is a deficient number, since it is larger than the sum of its proper divisors (15550162117).

64900950779 is a wasteful number, since it uses less digits than its factorization.

64900950779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13302166.

The product of its (nonzero) digits is 4286520, while the sum is 56.

The spelling of 64900950779 in words is "sixty-four billion, nine hundred million, nine hundred fifty thousand, seven hundred seventy-nine".