64255267979 has 4 divisors (see below), whose sum is σ = 73434591984. Its totient is φ = 55075943976.

The previous prime is 64255267963. The next prime is 64255267997. The reversal of 64255267979 is 97976255246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64255267979 - 2⁴ = 64255267963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64255267919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4589661992 + ... + 4589662005.

It is an arithmetic number, because the mean of its divisors is an integer number (18358647996).

Almost surely, 2^64255267979 is an apocalyptic number.

64255267979 is a deficient number, since it is larger than the sum of its proper divisors (9179324005).

64255267979 is an equidigital number, since it uses as much as digits as its factorization.

64255267979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179324004.

The product of its digits is 57153600, while the sum is 62.

The spelling of 64255267979 in words is "sixty-four billion, two hundred fifty-five million, two hundred sixty-seven thousand, nine hundred seventy-nine".