631432642342 has 16 divisors (see below), whose sum is σ = 950737480992. Its totient is φ = 314521683840.

The previous prime is 631432642333. The next prime is 631432642363. The reversal of 631432642342 is 243246234136.

It is a junction number, because it is equal to n+sod(n) for n = 631432642295 and 631432642304.

It is a congruent 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, 441292 + ... + 1207312.

It is an arithmetic number, because the mean of its divisors is an integer number (59421092562).

Almost surely, 2^631432642342 is an apocalyptic number.

631432642342 is a deficient number, since it is larger than the sum of its proper divisors (319304838650).

631432642342 is a wasteful number, since it uses less digits than its factorization.

631432642342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767583.

The product of its digits is 497664, while the sum is 40.

Adding to 631432642342 its reverse (243246234136), we get a palindrome (874678876478).

The spelling of 631432642342 in words is "six hundred thirty-one billion, four hundred thirty-two million, six hundred forty-two thousand, three hundred forty-two".