1631627712 has 560 divisors, whose sum is σ = 5948135424. Its totient is φ = 435456000.

The previous prime is 1631627693. The next prime is 1631627729. The reversal of 1631627712 is 2177261361.

It is a happy number.

1631627712 is a `hidden beast` number, since 1 + 631 + 6 + 2 + 7 + 7 + 12 = 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 79 ways as a sum of consecutive naturals, for example, 22980637 + ... + 22980707.

Almost surely, 2^1631627712 is an apocalyptic number.

1631627712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1631627712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2974067712).

1631627712 is an abundant number, since it is smaller than the sum of its proper divisors (4316507712).

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

1631627712 is a wasteful number, since it uses less digits than its factorization.

1631627712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 131 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 1631627712 is about 40393.4117400350. The cubic root of 1631627712 is about 1177.2635315649.

The spelling of 1631627712 in words is "one billion, six hundred thirty-one million, six hundred twenty-seven thousand, seven hundred twelve".