13390999278 has 8 divisors (see below), whose sum is σ = 26781998568. Its totient is φ = 4463666424.

The previous prime is 13390999249. The next prime is 13390999291. The reversal of 13390999278 is 87299909331.

It is a sphenic number, since it is the product of 3 distinct primes.

13390999278 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115916601 + ... + 1115916612.

It is an arithmetic number, because the mean of its divisors is an integer number (3347749821).

Almost surely, 2^13390999278 is an apocalyptic number.

13390999278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13390999278 is a wasteful number, since it uses less digits than its factorization.

13390999278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231833218.

The product of its (nonzero) digits is 6613488, while the sum is 60.

The spelling of 13390999278 in words is "thirteen billion, three hundred ninety million, nine hundred ninety-nine thousand, two hundred seventy-eight".