64268537379 has 16 divisors (see below), whose sum is σ = 87315374112. Its totient is φ = 42039779328.

The previous prime is 64268537371. The next prime is 64268537393. The reversal of 64268537379 is 97373586246.

It is not a de Polignac number, because 64268537379 - 2³ = 64268537371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64268537371) 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 15 ways as a sum of consecutive naturals, for example, 718002 + ... + 802535.

It is an arithmetic number, because the mean of its divisors is an integer number (5457210882).

Almost surely, 2^64268537379 is an apocalyptic number.

64268537379 is a deficient number, since it is larger than the sum of its proper divisors (23046836733).

64268537379 is a wasteful number, since it uses less digits than its factorization.

64268537379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520806.

The product of its digits is 45722880, while the sum is 60.

The spelling of 64268537379 in words is "sixty-four billion, two hundred sixty-eight million, five hundred thirty-seven thousand, three hundred seventy-nine".