390971322971 has 8 divisors (see below), whose sum is σ = 391132262400. Its totient is φ = 390810427560.

The previous prime is 390971322947. The next prime is 390971322977. The reversal of 390971322971 is 179223179093.

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 390971322971 - 2³⁰ = 389897581147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390971322977) 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, 47797760 + ... + 47805938.

It is an arithmetic number, because the mean of its divisors is an integer number (48891532800).

Almost surely, 2^390971322971 is an apocalyptic number.

390971322971 is a deficient number, since it is larger than the sum of its proper divisors (160939429).

390971322971 is an equidigital number, since it uses as much as digits as its factorization.

390971322971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22009.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The spelling of 390971322971 in words is "three hundred ninety billion, nine hundred seventy-one million, three hundred twenty-two thousand, nine hundred seventy-one".