11890672636 has 12 divisors (see below), whose sum is σ = 20886034680. Its totient is φ = 5923234160.

The previous prime is 11890672631. The next prime is 11890672637. The reversal of 11890672636 is 63627609811.

It is a self number, because there is not a number n which added to its sum of digits gives 11890672636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11890672631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5524330 + ... + 5526481.

It is an arithmetic number, because the mean of its divisors is an integer number (1740502890).

Almost surely, 2^11890672636 is an apocalyptic number.

It is an amenable number.

11890672636 is a deficient number, since it is larger than the sum of its proper divisors (8995362044).

11890672636 is a wasteful number, since it uses less digits than its factorization.

11890672636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051084 (or 11051082 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 11890672636 in words is "eleven billion, eight hundred ninety million, six hundred seventy-two thousand, six hundred thirty-six".