4631689972 has 96 divisors (see below), whose sum is σ = 10139754240. Its totient is φ = 1802511360.

The previous prime is 4631689969. The next prime is 4631690083. The reversal of 4631689972 is 2799861364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6532354 + ... + 6533062.

It is an arithmetic number, because the mean of its divisors is an integer number (105622440).

Almost surely, 2^4631689972 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 4631689972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5069877120).

4631689972 is an abundant number, since it is smaller than the sum of its proper divisors (5508064268).

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

4631689972 is a wasteful number, since it uses less digits than its factorization.

4631689972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 999 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 4631689972 is about 68056.5204223666. The cubic root of 4631689972 is about 1666.9138710833.

The spelling of 4631689972 in words is "four billion, six hundred thirty-one million, six hundred eighty-nine thousand, nine hundred seventy-two".