11778826132 has 12 divisors (see below), whose sum is σ = 20640180820. Its totient is φ = 5881631616.

The previous prime is 11778826117. The next prime is 11778826207. The reversal of 11778826132 is 23162887711.

It can be written as a sum of positive squares in 2 ways, for example, as 8251178896 + 3527647236 = 90836^2 + 59394^2 .

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, 1941957 + ... + 1948012.

Almost surely, 2^11778826132 is an apocalyptic number.

It is an amenable number.

11778826132 is a deficient number, since it is larger than the sum of its proper divisors (8861354688).

11778826132 is a wasteful number, since it uses less digits than its factorization.

11778826132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890730 (or 3890728 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The spelling of 11778826132 in words is "eleven billion, seven hundred seventy-eight million, eight hundred twenty-six thousand, one hundred thirty-two".