64112037439 has 4 divisors (see below), whose sum is σ = 64135328256. Its totient is φ = 64088746624.

The previous prime is 64112037413. The next prime is 64112037467. The reversal of 64112037439 is 93473021146.

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 64112037439 - 2¹¹ = 64112035391 is a prime.

It is a super-2 number, since 2×64112037439² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64112037239) 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, 11641279 + ... + 11646784.

It is an arithmetic number, because the mean of its divisors is an integer number (16033832064).

Almost surely, 2^64112037439 is an apocalyptic number.

64112037439 is a deficient number, since it is larger than the sum of its proper divisors (23290817).

64112037439 is a wasteful number, since it uses less digits than its factorization.

64112037439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23290816.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 64112037439 in words is "sixty-four billion, one hundred twelve million, thirty-seven thousand, four hundred thirty-nine".