13031707646 has 24 divisors (see below), whose sum is σ = 21434926656. Its totient is φ = 5934735360.

The previous prime is 13031707627. The next prime is 13031707651. The reversal of 13031707646 is 64670713031.

It is a super-2 number, since 2×13031707646² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345731 + ... + 381566.

It is an arithmetic number, because the mean of its divisors is an integer number (893121944).

Almost surely, 2^13031707646 is an apocalyptic number.

13031707646 is a deficient number, since it is larger than the sum of its proper divisors (8403219010).

13031707646 is a wasteful number, since it uses less digits than its factorization.

13031707646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727364 (or 727347 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 13031707646 in words is "thirteen billion, thirty-one million, seven hundred seven thousand, six hundred forty-six".