631633715040 has 48 divisors (see below), whose sum is σ = 1989646203888. Its totient is φ = 168435657216.

The previous prime is 631633714993. The next prime is 631633715107. The reversal of 631633715040 is 40517336136.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×631633715040² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 631633715040.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 657951307 + ... + 657952266.

It is an arithmetic number, because the mean of its divisors is an integer number (41450962581).

Almost surely, 2^631633715040 is an apocalyptic number.

631633715040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

631633715040 is an abundant number, since it is smaller than the sum of its proper divisors (1358012488848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631633715040 is a wasteful number, since it uses less digits than its factorization.

631633715040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315903591 (or 1315903583 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 631633715040 in words is "six hundred thirty-one billion, six hundred thirty-three million, seven hundred fifteen thousand, forty".