64860817401 has 12 divisors (see below), whose sum is σ = 93697255600. Its totient is φ = 43236202680.

The previous prime is 64860817391. The next prime is 64860817403. The reversal of 64860817401 is 10471806846.

64860817401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64860817401 - 2¹⁴ = 64860801017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64860817403) 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, 265915 + ... + 447696.

Almost surely, 2^64860817401 is an apocalyptic number.

It is an amenable number.

64860817401 is a deficient number, since it is larger than the sum of its proper divisors (28836438199).

64860817401 is a wasteful number, since it uses less digits than its factorization.

64860817401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723716 (or 723713 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 64860817401 in words is "sixty-four billion, eight hundred sixty million, eight hundred seventeen thousand, four hundred one".