11636478976 has 22 divisors (see below), whose sum is σ = 23261596250. Its totient is φ = 5818238976.

The previous prime is 11636478943. The next prime is 11636478977. The reversal of 11636478976 is 67987463611.

It can be written as a sum of positive squares in only one way, i.e., 11457561600 + 178917376 = 107040^2 + 13376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11636478976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11636478977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5680851 + ... + 5682898.

Almost surely, 2^11636478976 is an apocalyptic number.

11636478976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11636478976 is a deficient number, since it is larger than the sum of its proper divisors (11625117274).

11636478976 is an equidigital number, since it uses as much as digits as its factorization.

11636478976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363769 (or 11363751 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 58.

The spelling of 11636478976 in words is "eleven billion, six hundred thirty-six million, four hundred seventy-eight thousand, nine hundred seventy-six".