13369806778 has 16 divisors (see below), whose sum is σ = 20536369920. Its totient is φ = 6525113616.

The previous prime is 13369806761. The next prime is 13369806787. The reversal of 13369806778 is 87760896331.

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, 155598 + ... + 225721.

It is an arithmetic number, because the mean of its divisors is an integer number (1283523120).

Almost surely, 2^13369806778 is an apocalyptic number.

13369806778 is a deficient number, since it is larger than the sum of its proper divisors (7166563142).

13369806778 is a wasteful number, since it uses less digits than its factorization.

13369806778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381741.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 13369806778 in words is "thirteen billion, three hundred sixty-nine million, eight hundred six thousand, seven hundred seventy-eight".