2515878345652 has 24 divisors (see below), whose sum is σ = 5033568786624. Its totient is φ = 1077845270592.

The previous prime is 2515878345599. The next prime is 2515878345709. The reversal of 2515878345652 is 2565438785152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16100278 + ... + 16255789.

It is an arithmetic number, because the mean of its divisors is an integer number (209732032776).

Almost surely, 2^{2515878345652} is an apocalyptic number.

It is an amenable number.

2515878345652 is an abundant number, since it is smaller than the sum of its proper divisors (2517690440972).

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

2515878345652 is a wasteful number, since it uses less digits than its factorization.

2515878345652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32358855 (or 32358853 counting only the distinct ones).

The product of its digits is 80640000, while the sum is 61.

The spelling of 2515878345652 in words is "two trillion, five hundred fifteen billion, eight hundred seventy-eight million, three hundred forty-five thousand, six hundred fifty-two".