13400322646 has 16 divisors (see below), whose sum is σ = 20156760000. Its totient is φ = 6681424968.

The previous prime is 13400322619. The next prime is 13400322707. The reversal of 13400322646 is 64622300431.

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, 1451481 + ... + 1460683.

It is an arithmetic number, because the mean of its divisors is an integer number (1259797500).

Almost surely, 2^13400322646 is an apocalyptic number.

13400322646 is a deficient number, since it is larger than the sum of its proper divisors (6756437354).

13400322646 is a wasteful number, since it uses less digits than its factorization.

13400322646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11163.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 13400322646 in words is "thirteen billion, four hundred million, three hundred twenty-two thousand, six hundred forty-six".