631075839487 has 8 divisors (see below), whose sum is σ = 645057213696. Its totient is φ = 617117558232.

The previous prime is 631075839413. The next prime is 631075839503. The reversal of 631075839487 is 784938570136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631075839487 - 2²³ = 631067450879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631075839787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5717973 + ... + 5827294.

It is an arithmetic number, because the mean of its divisors is an integer number (80632151712).

Almost surely, 2^631075839487 is an apocalyptic number.

631075839487 is a deficient number, since it is larger than the sum of its proper divisors (13981374209).

631075839487 is a wasteful number, since it uses less digits than its factorization.

631075839487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11546477.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 631075839487 in words is "six hundred thirty-one billion, seventy-five million, eight hundred thirty-nine thousand, four hundred eighty-seven".