291420474931 has 8 divisors (see below), whose sum is σ = 297446392080. Its totient is φ = 285414091872.

The previous prime is 291420474923. The next prime is 291420474941. The reversal of 291420474931 is 139474024192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 291420474931 - 2³ = 291420474923 is a prime.

It is a super-2 number, since 2×291420474931² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (291420474941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4853376 + ... + 4913053.

It is an arithmetic number, because the mean of its divisors is an integer number (37180799010).

Almost surely, 2^291420474931 is an apocalyptic number.

291420474931 is a deficient number, since it is larger than the sum of its proper divisors (6025917149).

291420474931 is an equidigital number, since it uses as much as digits as its factorization.

291420474931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9767045.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 291420474931 in words is "two hundred ninety-one billion, four hundred twenty million, four hundred seventy-four thousand, nine hundred thirty-one".