390386631797 has 16 divisors (see below), whose sum is σ = 415403873280. Its totient is φ = 366231566400.

The previous prime is 390386631779. The next prime is 390386631821. The reversal of 390386631797 is 797136683093.

It is a cyclic number.

It is not a de Polignac number, because 390386631797 - 2⁸ = 390386631541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390386631737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581354 + ... + 1057707.

It is an arithmetic number, because the mean of its divisors is an integer number (25962742080).

Almost surely, 2^390386631797 is an apocalyptic number.

It is an amenable number.

390386631797 is a deficient number, since it is larger than the sum of its proper divisors (25017241483).

390386631797 is a wasteful number, since it uses less digits than its factorization.

390386631797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639324.

The product of its (nonzero) digits is 30862944, while the sum is 62.

The spelling of 390386631797 in words is "three hundred ninety billion, three hundred eighty-six million, six hundred thirty-one thousand, seven hundred ninety-seven".