631474275291 has 8 divisors (see below), whose sum is σ = 844086522384. Its totient is φ = 419922439200.

The previous prime is 631474275281. The next prime is 631474275373. The reversal of 631474275291 is 192572474136.

It is a happy number.

631474275291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 631474275291 - 2²² = 631470080987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631474275221) 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, 265101360 + ... + 265103741.

It is an arithmetic number, because the mean of its divisors is an integer number (105510815298).

Almost surely, 2^631474275291 is an apocalyptic number.

631474275291 is a deficient number, since it is larger than the sum of its proper divisors (212612247093).

631474275291 is a wasteful number, since it uses less digits than its factorization.

631474275291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530205501.

The product of its digits is 2540160, while the sum is 51.

The spelling of 631474275291 in words is "six hundred thirty-one billion, four hundred seventy-four million, two hundred seventy-five thousand, two hundred ninety-one".