11978474346926 has 8 divisors (see below), whose sum is σ = 18306724945464. Its totient is φ = 5876232698440.

The previous prime is 11978474346913. The next prime is 11978474346931. The reversal of 11978474346926 is 62964347487911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11978474346926.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56502237380 + ... + 56502237591.

It is an arithmetic number, because the mean of its divisors is an integer number (2288340618183).

Almost surely, 2^{11978474346926} is an apocalyptic number.

11978474346926 is a deficient number, since it is larger than the sum of its proper divisors (6328250598538).

11978474346926 is a wasteful number, since it uses less digits than its factorization.

11978474346926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113004475026.

The product of its digits is 438939648, while the sum is 71.

The spelling of 11978474346926 in words is "eleven trillion, nine hundred seventy-eight billion, four hundred seventy-four million, three hundred forty-six thousand, nine hundred twenty-six".