631271340348 has 24 divisors (see below), whose sum is σ = 1606872503040. Its totient is φ = 191294345520.

The previous prime is 631271340347. The next prime is 631271340361. The reversal of 631271340348 is 843043172136.

It is a super-2 number, since 2×631271340348² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631271340341) 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, 2391179188 + ... + 2391179451.

It is an arithmetic number, because the mean of its divisors is an integer number (66953020960).

Almost surely, 2^631271340348 is an apocalyptic number.

It is an amenable number.

631271340348 is an abundant number, since it is smaller than the sum of its proper divisors (975601162692).

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

631271340348 is a wasteful number, since it uses less digits than its factorization.

631271340348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782358657 (or 4782358655 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 631271340348 in words is "six hundred thirty-one billion, two hundred seventy-one million, three hundred forty thousand, three hundred forty-eight".