2575778002785 has 48 divisors (see below), whose sum is σ = 5090949483984. Its totient is φ = 1193482653696.

The previous prime is 2575778002753. The next prime is 2575778002793. The reversal of 2575778002785 is 5872008775752.

2575778002785 is a `hidden beast` number, since 2 + 57 + 577 + 8 + 0 + 0 + 2 + 7 + 8 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 52903220049 + 2522874782736 = 230007^2 + 1588356^2 .

It is not a de Polignac number, because 2575778002785 - 2⁵ = 2575778002753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129491212 + ... + 129511101.

It is an arithmetic number, because the mean of its divisors is an integer number (106061447583).

Almost surely, 2^{2575778002785} is an apocalyptic number.

It is an amenable number.

2575778002785 is a deficient number, since it is larger than the sum of its proper divisors (2515171481199).

2575778002785 is a wasteful number, since it uses less digits than its factorization.

2575778002785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259002354 (or 259002351 counting only the distinct ones).

The product of its (nonzero) digits is 76832000, while the sum is 63.

The spelling of 2575778002785 in words is "two trillion, five hundred seventy-five billion, seven hundred seventy-eight million, two thousand, seven hundred eighty-five".