11028743978 has 16 divisors (see below), whose sum is σ = 19022412480. Its totient is φ = 4697606016.

The previous prime is 11028743959. The next prime is 11028743981. The reversal of 11028743978 is 87934782011.

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, 2414183 + ... + 2418746.

It is an arithmetic number, because the mean of its divisors is an integer number (1188900780).

Almost surely, 2^11028743978 is an apocalyptic number.

11028743978 is a deficient number, since it is larger than the sum of its proper divisors (7993668502).

11028743978 is a wasteful number, since it uses less digits than its factorization.

11028743978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833101.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 11028743978 in words is "eleven billion, twenty-eight million, seven hundred forty-three thousand, nine hundred seventy-eight".