631322466042 has 16 divisors (see below), whose sum is σ = 1262702384640. Its totient is φ = 210431246592.

The previous prime is 631322466037. The next prime is 631322466043. The reversal of 631322466042 is 240664223136.

It is a super-2 number, since 2×631322466042² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (631322466043) 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, 2250343 + ... + 2515290.

It is an arithmetic number, because the mean of its divisors is an integer number (78918899040).

Almost surely, 2^631322466042 is an apocalyptic number.

631322466042 is an abundant number, since it is smaller than the sum of its proper divisors (631379918598).

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

631322466042 is a wasteful number, since it uses less digits than its factorization.

631322466042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787717.

The product of its (nonzero) digits is 248832, while the sum is 39.

Adding to 631322466042 its reverse (240664223136), we get a palindrome (871986689178).

The spelling of 631322466042 in words is "six hundred thirty-one billion, three hundred twenty-two million, four hundred sixty-six thousand, forty-two".