7868542855525 has 24 divisors (see below), whose sum is σ = 10703456229600. Its totient is φ = 5690606884800.

The previous prime is 7868542855501. The next prime is 7868542855553. The reversal of 7868542855525 is 5255582458687.

It is not a de Polignac number, because 7868542855525 - 2¹⁷ = 7868542724453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79875030 + ... + 79973479.

It is an arithmetic number, because the mean of its divisors is an integer number (445977342900).

Almost surely, 2^{7868542855525} is an apocalyptic number.

It is an amenable number.

7868542855525 is a deficient number, since it is larger than the sum of its proper divisors (2834913374075).

7868542855525 is a wasteful number, since it uses less digits than its factorization.

7868542855525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159848709 (or 159848704 counting only the distinct ones).

The product of its digits is 1075200000, while the sum is 70.

The spelling of 7868542855525 in words is "seven trillion, eight hundred sixty-eight billion, five hundred forty-two million, eight hundred fifty-five thousand, five hundred twenty-five".