11369691978 has 16 divisors (see below), whose sum is σ = 22745424576. Its totient is φ = 3788890560.

The previous prime is 11369691911. The next prime is 11369692031. The reversal of 11369691978 is 87919696311.

It is a happy 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, 227038 + ... + 272553.

It is an arithmetic number, because the mean of its divisors is an integer number (1421589036).

Almost surely, 2^11369691978 is an apocalyptic number.

11369691978 is an abundant number, since it is smaller than the sum of its proper divisors (11375732598).

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

11369691978 is a wasteful number, since it uses less digits than its factorization.

11369691978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503389.

The product of its digits is 4408992, while the sum is 60.

The spelling of 11369691978 in words is "eleven billion, three hundred sixty-nine million, six hundred ninety-one thousand, nine hundred seventy-eight".