390971677490 has 64 divisors (see below), whose sum is σ = 784518099840. Its totient is φ = 139415178240.

The previous prime is 390971677483. The next prime is 390971677511. The reversal of 390971677490 is 94776179093.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23929364 + ... + 23945696.

It is an arithmetic number, because the mean of its divisors is an integer number (12258095310).

Almost surely, 2^390971677490 is an apocalyptic number.

390971677490 is an abundant number, since it is smaller than the sum of its proper divisors (393546422350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390971677490 is a wasteful number, since it uses less digits than its factorization.

390971677490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23787.

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 390971677490 in words is "three hundred ninety billion, nine hundred seventy-one million, six hundred seventy-seven thousand, four hundred ninety".