11045394972 has 72 divisors (see below), whose sum is σ = 30848047776. Its totient is φ = 3314555904.

The previous prime is 11045394859. The next prime is 11045394973. The reversal of 11045394972 is 27949354011.

11045394972 is a `hidden beast` number, since 1 + 1 + 0 + 4 + 539 + 49 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11045394973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378273 + ... + 406424.

It is an arithmetic number, because the mean of its divisors is an integer number (428445108).

Almost surely, 2^11045394972 is an apocalyptic number.

11045394972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11045394972 is an abundant number, since it is smaller than the sum of its proper divisors (19802652804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11045394972 is a wasteful number, since it uses less digits than its factorization.

11045394972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784747 (or 784742 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 11045394972 in words is "eleven billion, forty-five million, three hundred ninety-four thousand, nine hundred seventy-two".