8799770779978 has 16 divisors (see below), whose sum is σ = 13228657364736. Its totient is φ = 4390219033200.

The previous prime is 8799770779939. The next prime is 8799770779993.

8799770779978 is nontrivially palindromic in base 10.

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, 26972428 + ... + 27296728.

It is an arithmetic number, because the mean of its divisors is an integer number (826791085296).

Almost surely, 2^{8799770779978} is an apocalyptic number.

8799770779978 is a deficient number, since it is larger than the sum of its proper divisors (4428886584758).

8799770779978 is a wasteful number, since it uses less digits than its factorization.

8799770779978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354069.

The product of its (nonzero) digits is 49401285696, while the sum is 94.

The spelling of 8799770779978 in words is "eight trillion, seven hundred ninety-nine billion, seven hundred seventy million, seven hundred seventy-nine thousand, nine hundred seventy-eight".