513500453153985 has 32 divisors (see below), whose sum is σ = 903133621463040. Its totient is φ = 247069382955200.

The previous prime is 513500453153903. The next prime is 513500453154023. The reversal of 513500453153985 is 589351354005315.

It is not a de Polignac number, because 513500453153985 - 2²⁴ = 513500436376769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11878314105 + ... + 11878357334.

It is an arithmetic number, because the mean of its divisors is an integer number (28222925670720).

Almost surely, 2^{513500453153985} is an apocalyptic number.

513500453153985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

513500453153985 is a deficient number, since it is larger than the sum of its proper divisors (389633168309055).

513500453153985 is a wasteful number, since it uses less digits than its factorization.

513500453153985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23756671589.

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 513500453153985 in words is "five hundred thirteen trillion, five hundred billion, four hundred fifty-three million, one hundred fifty-three thousand, nine hundred eighty-five".