2507861806680 has 32 divisors (see below), whose sum is σ = 7523585420400. Its totient is φ = 668763148416.

The previous prime is 2507861806663. The next prime is 2507861806691. The reversal of 2507861806680 is 866081687052.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2507861806680.

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, 10449424075 + ... + 10449424314.

Almost surely, 2^{2507861806680} is an apocalyptic number.

2507861806680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2507861806680 is an abundant number, since it is smaller than the sum of its proper divisors (5015723613720).

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

2507861806680 is a wasteful number, since it uses less digits than its factorization.

2507861806680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20898848403 (or 20898848399 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 2507861806680 in words is "two trillion, five hundred seven billion, eight hundred sixty-one million, eight hundred six thousand, six hundred eighty".