631617948148 has 12 divisors (see below), whose sum is σ = 1205816082912. Its totient is φ = 287099067320.

The previous prime is 631617948041. The next prime is 631617948161. The reversal of 631617948148 is 841849716136.

631617948148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 631617948092 and 631617948101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7177476640 + ... + 7177476727.

It is an arithmetic number, because the mean of its divisors is an integer number (100484673576).

Almost surely, 2^631617948148 is an apocalyptic number.

It is an amenable number.

631617948148 is a deficient number, since it is larger than the sum of its proper divisors (574198134764).

631617948148 is a wasteful number, since it uses less digits than its factorization.

631617948148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14354953382 (or 14354953380 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The spelling of 631617948148 in words is "six hundred thirty-one billion, six hundred seventeen million, nine hundred forty-eight thousand, one hundred forty-eight".