515040242392 has 16 divisors (see below), whose sum is σ = 1039985105040. Its totient is φ = 237710881056.

The previous prime is 515040242383. The next prime is 515040242393. The reversal of 515040242392 is 293242040515.

It is a super-2 number, since 2×515040242392² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515040242393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2476154908 + ... + 2476155115.

It is an arithmetic number, because the mean of its divisors is an integer number (64999069065).

Almost surely, 2^515040242392 is an apocalyptic number.

515040242392 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

515040242392 is an abundant number, since it is smaller than the sum of its proper divisors (524944862648).

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

515040242392 is a wasteful number, since it uses less digits than its factorization.

515040242392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952310042 (or 4952310038 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 515040242392 in words is "five hundred fifteen billion, forty million, two hundred forty-two thousand, three hundred ninety-two".