605726590631 has 4 divisors (see below), whose sum is σ = 606748052592. Its totient is φ = 604705128672.

The previous prime is 605726590561. The next prime is 605726590633. The reversal of 605726590631 is 136095627506.

It is a happy number.

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 605726590631 - 2²⁶ = 605659481767 is a prime.

It is a super-2 number, since 2×605726590631² (a number of 24 digits) contains 22 as substring.

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 605726590631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605726590633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510730091 + ... + 510731276.

It is an arithmetic number, because the mean of its divisors is an integer number (151687013148).

Almost surely, 2^605726590631 is an apocalyptic number.

605726590631 is a deficient number, since it is larger than the sum of its proper divisors (1021461961).

605726590631 is a wasteful number, since it uses less digits than its factorization.

605726590631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021461960.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 605726590631 in words is "six hundred five billion, seven hundred twenty-six million, five hundred ninety thousand, six hundred thirty-one".