64501341931 has 8 divisors (see below), whose sum is σ = 70243467840. Its totient is φ = 58870713792.

The previous prime is 64501341913. The next prime is 64501341941. The reversal of 64501341931 is 13914310546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64501341931 - 2⁷ = 64501341803 is a prime.

It is a super-2 number, since 2×64501341931² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64501341941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27873235 + ... + 27875548.

It is an arithmetic number, because the mean of its divisors is an integer number (8780433480).

Almost surely, 2^64501341931 is an apocalyptic number.

64501341931 is a deficient number, since it is larger than the sum of its proper divisors (5742125909).

64501341931 is a wasteful number, since it uses less digits than its factorization.

64501341931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55748885.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 64501341931 in words is "sixty-four billion, five hundred one million, three hundred forty-one thousand, nine hundred thirty-one".