64736980911 has 12 divisors (see below), whose sum is σ = 93721982640. Its totient is φ = 43059674880.

The previous prime is 64736980909. The next prime is 64736980927. The reversal of 64736980911 is 11908963746.

64736980911 is a `hidden beast` number, since 6 + 473 + 6 + 9 + 80 + 91 + 1 = 666.

It is not a de Polignac number, because 64736980911 - 2¹ = 64736980909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64736980901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8188530 + ... + 8196431.

It is an arithmetic number, because the mean of its divisors is an integer number (7810165220).

Almost surely, 2^64736980911 is an apocalyptic number.

64736980911 is a deficient number, since it is larger than the sum of its proper divisors (28985001729).

64736980911 is a wasteful number, since it uses less digits than its factorization.

64736980911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16385406 (or 16385403 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 64736980911 in words is "sixty-four billion, seven hundred thirty-six million, nine hundred eighty thousand, nine hundred eleven".