2086610878625 has 64 divisors (see below), whose sum is σ = 3211733790720. Its totient is φ = 1317995136000.

The previous prime is 2086610878621. The next prime is 2086610878663. The reversal of 2086610878625 is 5268780166802.

It is a happy number.

It is not a de Polignac number, because 2086610878625 - 2² = 2086610878621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2086610878621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5257145 + ... + 5640105.

It is an arithmetic number, because the mean of its divisors is an integer number (50183340480).

Almost surely, 2^{2086610878625} is an apocalyptic number.

2086610878625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2086610878625 is a deficient number, since it is larger than the sum of its proper divisors (1125122912095).

2086610878625 is a wasteful number, since it uses less digits than its factorization.

2086610878625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383475 (or 383465 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 2086610878625 in words is "two trillion, eighty-six billion, six hundred ten million, eight hundred seventy-eight thousand, six hundred twenty-five".