631903945701 has 32 divisors (see below), whose sum is σ = 964347310080. Its totient is φ = 360546068736.

The previous prime is 631903945681. The next prime is 631903945709. The reversal of 631903945701 is 107549309136.

It is not a de Polignac number, because 631903945701 - 2²⁷ = 631769727973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631903945709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52975000 + ... + 52986926.

It is an arithmetic number, because the mean of its divisors is an integer number (30135853440).

Almost surely, 2^631903945701 is an apocalyptic number.

It is an amenable number.

631903945701 is a deficient number, since it is larger than the sum of its proper divisors (332443364379).

631903945701 is a wasteful number, since it uses less digits than its factorization.

631903945701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15513.

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 631903945701 in words is "six hundred thirty-one billion, nine hundred three million, nine hundred forty-five thousand, seven hundred one".