11451570518 has 16 divisors (see below), whose sum is σ = 18203088960. Its totient is φ = 5393505600.

The previous prime is 11451570511. The next prime is 11451570523. The reversal of 11451570518 is 81507515411.

It is a happy number.

11451570518 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11451570518² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451570511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405438 + ... + 2410193.

It is an arithmetic number, because the mean of its divisors is an integer number (1137693060).

Almost surely, 2^11451570518 is an apocalyptic number.

11451570518 is a deficient number, since it is larger than the sum of its proper divisors (6751518442).

11451570518 is a wasteful number, since it uses less digits than its factorization.

11451570518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815703.

The product of its (nonzero) digits is 28000, while the sum is 38.

The spelling of 11451570518 in words is "eleven billion, four hundred fifty-one million, five hundred seventy thousand, five hundred eighteen".