11381994925 has 12 divisors (see below), whose sum is σ = 16129913056. Its totient is φ = 7804796400.

The previous prime is 11381994863. The next prime is 11381994961. The reversal of 11381994925 is 52949918311.

It is a de Polignac number, because none of the positive numbers 2^k-11381994925 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32519811 + ... + 32520160.

Almost surely, 2^11381994925 is an apocalyptic number.

It is an amenable number.

11381994925 is a deficient number, since it is larger than the sum of its proper divisors (4747918131).

11381994925 is an equidigital number, since it uses as much as digits as its factorization.

11381994925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65039988 (or 65039983 counting only the distinct ones).

The product of its digits is 699840, while the sum is 52.

The spelling of 11381994925 in words is "eleven billion, three hundred eighty-one million, nine hundred ninety-four thousand, nine hundred twenty-five".