11778313012 has 6 divisors (see below), whose sum is σ = 20612047778. Its totient is φ = 5889156504.

The previous prime is 11778313003. The next prime is 11778313021. The reversal of 11778313012 is 21031387711.

It is a happy number.

11778313012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11778313003) and next prime (11778313021).

It can be written as a sum of positive squares in only one way, i.e., 11680421776 + 97891236 = 108076^2 + 9894^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1472289123 + ... + 1472289130.

Almost surely, 2^11778313012 is an apocalyptic number.

It is an amenable number.

11778313012 is a deficient number, since it is larger than the sum of its proper divisors (8833734766).

11778313012 is a wasteful number, since it uses less digits than its factorization.

11778313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944578257 (or 2944578255 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 11778313012 in words is "eleven billion, seven hundred seventy-eight million, three hundred thirteen thousand, twelve".