390947498611 has 4 divisors (see below), whose sum is σ = 413944410312. Its totient is φ = 367950586912.

The previous prime is 390947498537. The next prime is 390947498629. The reversal of 390947498611 is 116894749093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390947498611 - 2¹³ = 390947490419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390947498611.

It is not an unprimeable number, because it can be changed into a prime (390947898611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11498455825 + ... + 11498455858.

It is an arithmetic number, because the mean of its divisors is an integer number (103486102578).

Almost surely, 2^390947498611 is an apocalyptic number.

390947498611 is a deficient number, since it is larger than the sum of its proper divisors (22996911701).

390947498611 is a wasteful number, since it uses less digits than its factorization.

390947498611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22996911700.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 390947498611 in words is "three hundred ninety billion, nine hundred forty-seven million, four hundred ninety-eight thousand, six hundred eleven".