11867636552 has 32 divisors (see below), whose sum is σ = 22556086200. Its totient is φ = 5853120000.

The previous prime is 11867636549. The next prime is 11867636603. The reversal of 11867636552 is 25563676811.

It can be written as a sum of positive squares in 4 ways, for example, as 7390153156 + 4477483396 = 85966^2 + 66914^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11867636552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190052 + ... + 244652.

Almost surely, 2^11867636552 is an apocalyptic number.

It is an amenable number.

11867636552 is a deficient number, since it is larger than the sum of its proper divisors (10688449648).

11867636552 is a wasteful number, since it uses less digits than its factorization.

11867636552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54977 (or 54973 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The spelling of 11867636552 in words is "eleven billion, eight hundred sixty-seven million, six hundred thirty-six thousand, five hundred fifty-two".