64993410437 has 8 divisors (see below), whose sum is σ = 68034903552. Its totient is φ = 62010975600.

The previous prime is 64993410431. The next prime is 64993410451. The reversal of 64993410437 is 73401439946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64993410437 - 2⁴ = 64993410421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64993410431) 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 7 ways as a sum of consecutive naturals, for example, 14762318 + ... + 14766719.

It is an arithmetic number, because the mean of its divisors is an integer number (8504362944).

Almost surely, 2^64993410437 is an apocalyptic number.

It is an amenable number.

64993410437 is a deficient number, since it is larger than the sum of its proper divisors (3041493115).

64993410437 is a wasteful number, since it uses less digits than its factorization.

64993410437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29529139.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 64993410437 in words is "sixty-four billion, nine hundred ninety-three million, four hundred ten thousand, four hundred thirty-seven".