510525315342478 has 4 divisors (see below), whose sum is σ = 765787973013720. Its totient is φ = 255262657671238.

The previous prime is 510525315342443. The next prime is 510525315342479. The reversal of 510525315342478 is 874243513525015.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510525315342479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127631328835618 + ... + 127631328835621.

It is an arithmetic number, because the mean of its divisors is an integer number (191446993253430).

Almost surely, 2^{510525315342478} is an apocalyptic number.

510525315342478 is a deficient number, since it is larger than the sum of its proper divisors (255262657671242).

510525315342478 is a wasteful number, since it uses less digits than its factorization.

510525315342478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255262657671241.

The product of its (nonzero) digits is 20160000, while the sum is 55.

The spelling of 510525315342478 in words is "five hundred ten trillion, five hundred twenty-five billion, three hundred fifteen million, three hundred forty-two thousand, four hundred seventy-eight".