631154451136 has 56 divisors (see below), whose sum is σ = 1367093379600. Its totient is φ = 286723046400.

The previous prime is 631154451131. The next prime is 631154451209.

It is a happy number.

631154451136 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (631154451131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968190 + ... + 1483138.

Almost surely, 2^631154451136 is an apocalyptic number.

It is an amenable number.

631154451136 is an abundant number, since it is smaller than the sum of its proper divisors (735938928464).

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

631154451136 is a wasteful number, since it uses less digits than its factorization.

631154451136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516713 (or 516703 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The spelling of 631154451136 in words is "six hundred thirty-one billion, one hundred fifty-four million, four hundred fifty-one thousand, one hundred thirty-six".