515180929452 has 96 divisors (see below), whose sum is σ = 1473041848320. Its totient is φ = 136782397440.

The previous prime is 515180929447. The next prime is 515180929453. The reversal of 515180929452 is 254929081515.

It is a super-2 number, since 2×515180929452² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 515180929395 and 515180929404.

It is not an unprimeable number, because it can be changed into a prime (515180929453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170549 + ... + 2396172.

It is an arithmetic number, because the mean of its divisors is an integer number (15344185920).

Almost surely, 2^515180929452 is an apocalyptic number.

It is an amenable number.

515180929452 is an abundant number, since it is smaller than the sum of its proper divisors (957860918868).

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

515180929452 is a wasteful number, since it uses less digits than its factorization.

515180929452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566831 (or 4566829 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 51.

The spelling of 515180929452 in words is "five hundred fifteen billion, one hundred eighty million, nine hundred twenty-nine thousand, four hundred fifty-two".