390624643264331 has 8 divisors (see below), whose sum is σ = 446428341103584. Its totient is φ = 334820989768320.

The previous prime is 390624643264313. The next prime is 390624643264343. The reversal of 390624643264331 is 133462346426093.

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 390624643264331 - 2⁶ = 390624643264267 is a prime.

It is a super-2 number, since 2×390624643264331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (390624643263331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10625651 + ... + 29902403.

It is an arithmetic number, because the mean of its divisors is an integer number (55803542637948).

Almost surely, 2^{390624643264331} is an apocalyptic number.

390624643264331 is a deficient number, since it is larger than the sum of its proper divisors (55803697839253).

390624643264331 is a wasteful number, since it uses less digits than its factorization.

390624643264331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22171621.

The product of its (nonzero) digits is 40310784, while the sum is 56.

The spelling of 390624643264331 in words is "three hundred ninety trillion, six hundred twenty-four billion, six hundred forty-three million, two hundred sixty-four thousand, three hundred thirty-one".