11381631836 has 6 divisors (see below), whose sum is σ = 19917855720. Its totient is φ = 5690815916.

The previous prime is 11381631829. The next prime is 11381631841. The reversal of 11381631836 is 63813618311.

It is a junction number, because it is equal to n+sod(n) for n = 11381631793 and 11381631802.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1422703976 + ... + 1422703983.

It is an arithmetic number, because the mean of its divisors is an integer number (3319642620).

Almost surely, 2^11381631836 is an apocalyptic number.

It is an amenable number.

11381631836 is a deficient number, since it is larger than the sum of its proper divisors (8536223884).

11381631836 is a wasteful number, since it uses less digits than its factorization.

11381631836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845407963 (or 2845407961 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The spelling of 11381631836 in words is "eleven billion, three hundred eighty-one million, six hundred thirty-one thousand, eight hundred thirty-six".