11451542172 has 48 divisors (see below), whose sum is σ = 30560893440. Its totient is φ = 3269356992.

The previous prime is 11451542131. The next prime is 11451542183. The reversal of 11451542172 is 27124515411.

It is a super-2 number, since 2×11451542172² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59118 + ... + 162474.

It is an arithmetic number, because the mean of its divisors is an integer number (636685280).

Almost surely, 2^11451542172 is an apocalyptic number.

11451542172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11451542172 is an abundant number, since it is smaller than the sum of its proper divisors (19109351268).

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

11451542172 is a wasteful number, since it uses less digits than its factorization.

11451542172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104690 (or 104688 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The spelling of 11451542172 in words is "eleven billion, four hundred fifty-one million, five hundred forty-two thousand, one hundred seventy-two".