631019272000 has 448 divisors, whose sum is σ = 1725450854400. Its totient is φ = 227163955200.

The previous prime is 631019271889. The next prime is 631019272031. The reversal of 631019272000 is 272910136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1317367761 + ... + 1317368239.

It is an arithmetic number, because the mean of its divisors is an integer number (3851452800).

Almost surely, 2^631019272000 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 631019272000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862725427200).

631019272000 is an abundant number, since it is smaller than the sum of its proper divisors (1094431582400).

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

631019272000 is a wasteful number, since it uses less digits than its factorization.

631019272000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 631019272000 in words is "six hundred thirty-one billion, nineteen million, two hundred seventy-two thousand".