8027780280025 has 36 divisors (see below), whose sum is σ = 11130721396272. Its totient is φ = 5695985680000.

The previous prime is 8027780280011. The next prime is 8027780280031. The reversal of 8027780280025 is 5200820877208.

It is not a de Polignac number, because 8027780280025 - 2³⁵ = 7993420541657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8220631 + ... + 9145180.

It is an arithmetic number, because the mean of its divisors is an integer number (309186705452).

Almost surely, 2^{8027780280025} is an apocalyptic number.

It is an amenable number.

8027780280025 is a deficient number, since it is larger than the sum of its proper divisors (3102941116247).

8027780280025 is a wasteful number, since it uses less digits than its factorization.

8027780280025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17365914 (or 17365868 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 8027780280025 in words is "eight trillion, twenty-seven billion, seven hundred eighty million, two hundred eighty thousand, twenty-five".