2881270865525 has 12 divisors (see below), whose sum is σ = 3847604787012. Its totient is φ = 2127707715840.

The previous prime is 2881270865507. The next prime is 2881270865563. The reversal of 2881270865525 is 5255680721882.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2826091921 + 2878444773604 = 53161^2 + 1696598^2 .

It is not a de Polignac number, because 2881270865525 - 2⁸ = 2881270865269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4432724084 + ... + 4432724733.

It is an arithmetic number, because the mean of its divisors is an integer number (320633732251).

Almost surely, 2^{2881270865525} is an apocalyptic number.

2881270865525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2881270865525 is a deficient number, since it is larger than the sum of its proper divisors (966333921487).

2881270865525 is a wasteful number, since it uses less digits than its factorization.

2881270865525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865448840 (or 8865448835 counting only the distinct ones).

The product of its (nonzero) digits is 21504000, while the sum is 59.

The spelling of 2881270865525 in words is "two trillion, eight hundred eighty-one billion, two hundred seventy million, eight hundred sixty-five thousand, five hundred twenty-five".