290631992497 has 24 divisors (see below), whose sum is σ = 369456444000. Its totient is φ = 226073756160.

The previous prime is 290631992467. The next prime is 290631992507. The reversal of 290631992497 is 794299136092.

It is not a de Polignac number, because 290631992497 - 2¹⁵ = 290631959729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290631992467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156247 + ... + 778252.

It is an arithmetic number, because the mean of its divisors is an integer number (15394018500).

Almost surely, 2^290631992497 is an apocalyptic number.

It is an amenable number.

290631992497 is a deficient number, since it is larger than the sum of its proper divisors (78824451503).

290631992497 is a wasteful number, since it uses less digits than its factorization.

290631992497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935101 (or 935094 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 290631992497 in words is "two hundred ninety billion, six hundred thirty-one million, nine hundred ninety-two thousand, four hundred ninety-seven".