631294330337 has 4 divisors (see below), whose sum is σ = 688684724016. Its totient is φ = 573903936660.

The previous prime is 631294330333. The next prime is 631294330369. The reversal of 631294330337 is 733033492136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631294330337 - 2² = 631294330333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631294330333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28695196823 + ... + 28695196844.

It is an arithmetic number, because the mean of its divisors is an integer number (172171181004).

Almost surely, 2^631294330337 is an apocalyptic number.

It is an amenable number.

631294330337 is a deficient number, since it is larger than the sum of its proper divisors (57390393679).

631294330337 is a wasteful number, since it uses less digits than its factorization.

631294330337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57390393678.

The product of its (nonzero) digits is 734832, while the sum is 44.

The spelling of 631294330337 in words is "six hundred thirty-one billion, two hundred ninety-four million, three hundred thirty thousand, three hundred thirty-seven".