642282631476 has 96 divisors (see below), whose sum is σ = 1557296568576. Its totient is φ = 205871616000.

The previous prime is 642282631447. The next prime is 642282631477. The reversal of 642282631476 is 674136282246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642282631477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61806241 + ... + 61816631.

It is an arithmetic number, because the mean of its divisors is an integer number (16221839256).

Almost surely, 2^642282631476 is an apocalyptic number.

It is an amenable number.

642282631476 is an abundant number, since it is smaller than the sum of its proper divisors (915013937100).

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

642282631476 is a wasteful number, since it uses less digits than its factorization.

642282631476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12233 (or 12231 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The spelling of 642282631476 in words is "six hundred forty-two billion, two hundred eighty-two million, six hundred thirty-one thousand, four hundred seventy-six".