631146640514 has 24 divisors (see below), whose sum is σ = 1027851546960. Its totient is φ = 290529793008.

The previous prime is 631146640483. The next prime is 631146640517. The reversal of 631146640514 is 415046641136.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (631146640517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2335352 + ... + 2591555.

It is an arithmetic number, because the mean of its divisors is an integer number (42827147790).

Almost surely, 2^631146640514 is an apocalyptic number.

631146640514 is a deficient number, since it is larger than the sum of its proper divisors (396704906446).

631146640514 is a wasteful number, since it uses less digits than its factorization.

631146640514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927314 (or 4927301 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 631146640514 in words is "six hundred thirty-one billion, one hundred forty-six million, six hundred forty thousand, five hundred fourteen".