2788898765265 has 96 divisors (see below), whose sum is σ = 5359873109760. Its totient is φ = 1334317805568.

The previous prime is 2788898765249. The next prime is 2788898765267. The reversal of 2788898765265 is 5625678988872.

It is a happy number.

2788898765265 is a `hidden beast` number, since 2 + 7 + 8 + 8 + 8 + 9 + 87 + 6 + 526 + 5 = 666.

2788898765265 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2788898765265 - 2⁴ = 2788898765249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2788898765267) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4699341 + ... + 5259429.

It is an arithmetic number, because the mean of its divisors is an integer number (55832011560).

Almost surely, 2^{2788898765265} is an apocalyptic number.

It is an amenable number.

2788898765265 is a deficient number, since it is larger than the sum of its proper divisors (2570974344495).

2788898765265 is a wasteful number, since it uses less digits than its factorization.

2788898765265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560423 (or 560420 counting only the distinct ones).

The product of its digits is 6502809600, while the sum is 81.

The spelling of 2788898765265 in words is "two trillion, seven hundred eighty-eight billion, eight hundred ninety-eight million, seven hundred sixty-five thousand, two hundred sixty-five".