465990379947 has 32 divisors (see below), whose sum is σ = 702727584000. Its totient is φ = 305103153600.

The previous prime is 465990379937. The next prime is 465990379961. The reversal of 465990379947 is 749973099564.

465990379947 is a `hidden beast` number, since 465 + 9 + 9 + 0 + 3 + 79 + 94 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-465990379947 is a prime.

It is a super-3 number, since 3×465990379947³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (465990379937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1535079 + ... + 1813407.

It is an arithmetic number, because the mean of its divisors is an integer number (21960237000).

Almost surely, 2^465990379947 is an apocalyptic number.

465990379947 is a deficient number, since it is larger than the sum of its proper divisors (236737204053).

465990379947 is a wasteful number, since it uses less digits than its factorization.

465990379947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279448 (or 279442 counting only the distinct ones).

The product of its (nonzero) digits is 462944160, while the sum is 72.

The spelling of 465990379947 in words is "four hundred sixty-five billion, nine hundred ninety million, three hundred seventy-nine thousand, nine hundred forty-seven".