64431317401 has 16 divisors (see below), whose sum is σ = 70866187200. Its totient is φ = 58093871680.

The previous prime is 64431317387. The next prime is 64431317407. The reversal of 64431317401 is 10471313446.

It is a cyclic number.

It is not a de Polignac number, because 64431317401 - 2¹³ = 64431309209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64431317407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080570 + ... + 1138636.

It is an arithmetic number, because the mean of its divisors is an integer number (4429136700).

Almost surely, 2^64431317401 is an apocalyptic number.

It is an amenable number.

64431317401 is a deficient number, since it is larger than the sum of its proper divisors (6434869799).

64431317401 is a wasteful number, since it uses less digits than its factorization.

64431317401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58904.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 64431317401 in words is "sixty-four billion, four hundred thirty-one million, three hundred seventeen thousand, four hundred one".