13456667790 has 24 divisors (see below), whose sum is σ = 34987336488. Its totient is φ = 3588444720.

The previous prime is 13456667789. The next prime is 13456667801. The reversal of 13456667790 is 9776665431.

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 11 ways as a sum of consecutive naturals, for example, 74759176 + ... + 74759355.

It is an arithmetic number, because the mean of its divisors is an integer number (1457805687).

Almost surely, 2^13456667790 is an apocalyptic number.

13456667790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13456667790 is an abundant number, since it is smaller than the sum of its proper divisors (21530668698).

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

13456667790 is a wasteful number, since it uses less digits than its factorization.

13456667790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149518544 (or 149518541 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 13456667790 in words is "thirteen billion, four hundred fifty-six million, six hundred sixty-seven thousand, seven hundred ninety".