11778462786 has 32 divisors (see below), whose sum is σ = 24813144000. Its totient is φ = 3717057600.

The previous prime is 11778462763. The next prime is 11778462799. The reversal of 11778462786 is 68726487711.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143236 + ... + 209936.

It is an arithmetic number, because the mean of its divisors is an integer number (775410750).

Almost surely, 2^11778462786 is an apocalyptic number.

11778462786 is an abundant number, since it is smaller than the sum of its proper divisors (13034681214).

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

11778462786 is a wasteful number, since it uses less digits than its factorization.

11778462786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68274.

The product of its digits is 6322176, while the sum is 57.

The spelling of 11778462786 in words is "eleven billion, seven hundred seventy-eight million, four hundred sixty-two thousand, seven hundred eighty-six".