631875378 has 16 divisors (see below), whose sum is σ = 1264434336. Its totient is φ = 210511200.

The previous prime is 631875353. The next prime is 631875383. The reversal of 631875378 is 873578136.

631875378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16048 + ... + 39003.

It is an arithmetic number, because the mean of its divisors is an integer number (79027146).

Almost surely, 2^631875378 is an apocalyptic number.

631875378 is an abundant number, since it is smaller than the sum of its proper divisors (632558958).

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

631875378 is a wasteful number, since it uses less digits than its factorization.

631875378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56969.

The product of its digits is 846720, while the sum is 48.

The square root of 631875378 is about 25137.1314592576. The cubic root of 631875378 is about 858.1116752505. Note that the first 3 decimals are identical.

The spelling of 631875378 in words is "six hundred thirty-one million, eight hundred seventy-five thousand, three hundred seventy-eight".