64113706427 has 4 divisors (see below), whose sum is σ = 66324523920. Its totient is φ = 61902888936.

The previous prime is 64113706421. The next prime is 64113706441. The reversal of 64113706427 is 72460731146.

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 64113706427 - 2³⁴ = 46933837243 is a prime.

It is a super-2 number, since 2×64113706427² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64113706421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105408703 + ... + 1105408760.

It is an arithmetic number, because the mean of its divisors is an integer number (16581130980).

Almost surely, 2^64113706427 is an apocalyptic number.

64113706427 is a deficient number, since it is larger than the sum of its proper divisors (2210817493).

64113706427 is a wasteful number, since it uses less digits than its factorization.

64113706427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210817492.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 64113706427 in words is "sixty-four billion, one hundred thirteen million, seven hundred six thousand, four hundred twenty-seven".