631346803428 has 24 divisors (see below), whose sum is σ = 1607064590880. Its totient is φ = 191317213120.

The previous prime is 631346803411. The next prime is 631346803447. The reversal of 631346803428 is 824308643136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2391465033 + ... + 2391465296.

It is an arithmetic number, because the mean of its divisors is an integer number (66961024620).

Almost surely, 2^631346803428 is an apocalyptic number.

It is an amenable number.

631346803428 is an abundant number, since it is smaller than the sum of its proper divisors (975717787452).

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

631346803428 is a wasteful number, since it uses less digits than its factorization.

631346803428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782930347 (or 4782930345 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 631346803428 in words is "six hundred thirty-one billion, three hundred forty-six million, eight hundred three thousand, four hundred twenty-eight".