130515915078 has 24 divisors (see below), whose sum is σ = 282808445088. Its totient is φ = 43501618512.

The previous prime is 130515915071. The next prime is 130515915097. The reversal of 130515915078 is 870519515031.

130515915078 is a `hidden beast` number, since 1 + 3 + 0 + 5 + 1 + 591 + 50 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130515915071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84526 + ... + 517857.

It is an arithmetic number, because the mean of its divisors is an integer number (11783685212).

Almost surely, 2^130515915078 is an apocalyptic number.

130515915078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

130515915078 is an abundant number, since it is smaller than the sum of its proper divisors (152292530010).

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

130515915078 is a wasteful number, since it uses less digits than its factorization.

130515915078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614428 (or 614425 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 45.

The spelling of 130515915078 in words is "one hundred thirty billion, five hundred fifteen million, nine hundred fifteen thousand, seventy-eight".