31104521611636 has 12 divisors (see below), whose sum is σ = 59381359440480. Its totient is φ = 14138418914360.

The previous prime is 31104521611633. The next prime is 31104521611687. The reversal of 31104521611636 is 63611612540113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31104521611633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353460472816 + ... + 353460472903.

It is an arithmetic number, because the mean of its divisors is an integer number (4948446620040).

Almost surely, 2^{31104521611636} is an apocalyptic number.

It is an amenable number.

31104521611636 is a deficient number, since it is larger than the sum of its proper divisors (28276837828844).

31104521611636 is a wasteful number, since it uses less digits than its factorization.

31104521611636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706920945734 (or 706920945732 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 31104521611636 in words is "thirty-one trillion, one hundred four billion, five hundred twenty-one million, six hundred eleven thousand, six hundred thirty-six".