31485353660 has 24 divisors (see below), whose sum is σ = 68993993376. Its totient is φ = 12046569920.

The previous prime is 31485353657. The next prime is 31485353671. The reversal of 31485353660 is 6635358413.

It is a happy number.

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, 34222751 + ... + 34223670.

It is an arithmetic number, because the mean of its divisors is an integer number (2874749724).

Almost surely, 2^31485353660 is an apocalyptic number.

It is an amenable number.

31485353660 is an abundant number, since it is smaller than the sum of its proper divisors (37508639716).

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

31485353660 is a wasteful number, since it uses less digits than its factorization.

31485353660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68446453 (or 68446451 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 31485353660 in words is "thirty-one billion, four hundred eighty-five million, three hundred fifty-three thousand, six hundred sixty".