64323251447139 has 12 divisors (see below), whose sum is σ = 95908503950272. Its totient is φ = 41498871901200.

The previous prime is 64323251447047. The next prime is 64323251447197. The reversal of 64323251447139 is 93174415232346.

64323251447139 is a `hidden beast` number, since 6 + 4 + 3 + 23 + 2 + 514 + 4 + 71 + 39 = 666.

It is not a de Polignac number, because 64323251447139 - 2²⁴ = 64323234669923 is a prime.

It is a super-2 number, since 2×64323251447139² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64323251448139) 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, 115274643892 + ... + 115274644449.

Almost surely, 2^{64323251447139} is an apocalyptic number.

64323251447139 is a deficient number, since it is larger than the sum of its proper divisors (31585252503133).

64323251447139 is a wasteful number, since it uses less digits than its factorization.

64323251447139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230549288378 (or 230549288375 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 64323251447139 in words is "sixty-four trillion, three hundred twenty-three billion, two hundred fifty-one million, four hundred forty-seven thousand, one hundred thirty-nine".