11778962674 has 4 divisors (see below), whose sum is σ = 17668444014. Its totient is φ = 5889481336.

The previous prime is 11778962659. The next prime is 11778962681. The reversal of 11778962674 is 47626987711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47626987711 = 173 ⋅275300507.

It can be written as a sum of positive squares in only one way, i.e., 11503635025 + 275327649 = 107255^2 + 16593^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2944740667 + ... + 2944740670.

Almost surely, 2^11778962674 is an apocalyptic number.

11778962674 is a deficient number, since it is larger than the sum of its proper divisors (5889481340).

11778962674 is an equidigital number, since it uses as much as digits as its factorization.

11778962674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889481339.

The product of its digits is 7112448, while the sum is 58.

The spelling of 11778962674 in words is "eleven billion, seven hundred seventy-eight million, nine hundred sixty-two thousand, six hundred seventy-four".