11351173725 has 36 divisors (see below), whose sum is σ = 20675834400. Its totient is φ = 5951342880.

The previous prime is 11351173721. The next prime is 11351173783. The reversal of 11351173725 is 52737115311.

11351173725 is a `hidden beast` number, since 1 + 1 + 3 + 511 + 73 + 72 + 5 = 666.

It is not a de Polignac number, because 11351173725 - 2² = 11351173721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11351173725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11351173721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 414265 + ... + 440814.

Almost surely, 2^11351173725 is an apocalyptic number.

11351173725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11351173725 is a deficient number, since it is larger than the sum of its proper divisors (9324660675).

11351173725 is a wasteful number, since it uses less digits than its factorization.

11351173725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855154 (or 855146 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The spelling of 11351173725 in words is "eleven billion, three hundred fifty-one million, one hundred seventy-three thousand, seven hundred twenty-five".