6317631612 has 72 divisors (see below), whose sum is σ = 16645604976. Its totient is φ = 2095123968.

The previous prime is 6317631589. The next prime is 6317631623. The reversal of 6317631612 is 2161367136.

6317631612 is a `hidden beast` number, since 6 + 3 + 1 + 7 + 6 + 31 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174988 + ... + 207980.

It is an arithmetic number, because the mean of its divisors is an integer number (231188958).

Almost surely, 2^6317631612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6317631612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8322802488).

6317631612 is an abundant number, since it is smaller than the sum of its proper divisors (10327973364).

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

6317631612 is a wasteful number, since it uses less digits than its factorization.

6317631612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33209 (or 33195 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 6317631612 is about 79483.5304449922. The cubic root of 6317631612 is about 1848.6361130261.

Adding to 6317631612 its reverse (2161367136), we get a palindrome (8478998748).

It can be divided in two parts, 631763 and 1612, that added together give a triangular number (633375 = T₁₁₂₅).

The spelling of 6317631612 in words is "six billion, three hundred seventeen million, six hundred thirty-one thousand, six hundred twelve".