31441400660 has 36 divisors (see below), whose sum is σ = 69022515828. Its totient is φ = 12029749248.

The previous prime is 31441400629. The next prime is 31441400663. The reversal of 31441400660 is 6600414413.

It can be written as a sum of positive squares in 2 ways, for example, as 16982781124 + 14458619536 = 130318^2 + 120244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441400663) 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 11 ways as a sum of consecutive naturals, for example, 1475309 + ... + 1496468.

Almost surely, 2^31441400660 is an apocalyptic number.

It is an amenable number.

31441400660 is an abundant number, since it is smaller than the sum of its proper divisors (37581115168).

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

31441400660 is a wasteful number, since it uses less digits than its factorization.

31441400660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971832 (or 2971807 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 31441400660 in words is "thirty-one billion, four hundred forty-one million, four hundred thousand, six hundred sixty".