64994305923371 has 16 divisors (see below), whose sum is σ = 72527754301440. Its totient is φ = 57745557888480.

The previous prime is 64994305923361. The next prime is 64994305923397. The reversal of 64994305923371 is 17332950349946.

It is not a de Polignac number, because 64994305923371 - 2²⁶ = 64994238814507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64994305923298 and 64994305923307.

It is not an unprimeable number, because it can be changed into a prime (64994305923331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347101916 + ... + 347289113.

It is an arithmetic number, because the mean of its divisors is an integer number (4532984643840).

Almost surely, 2^{64994305923371} is an apocalyptic number.

64994305923371 is a deficient number, since it is larger than the sum of its proper divisors (7533448378069).

64994305923371 is a wasteful number, since it uses less digits than its factorization.

64994305923371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694391234.

The product of its (nonzero) digits is 132269760, while the sum is 65.

The spelling of 64994305923371 in words is "sixty-four trillion, nine hundred ninety-four billion, three hundred five million, nine hundred twenty-three thousand, three hundred seventy-one".