2678966825 has 12 divisors (see below), whose sum is σ = 3325716828. Its totient is φ = 2140723200.

The previous prime is 2678966813. The next prime is 2678966827. The reversal of 2678966825 is 5286698762.

It can be written as a sum of positive squares in 6 ways, for example, as 179776 + 2678787049 = 424^2 + 51757^2 .

It is not a de Polignac number, because 2678966825 - 2⁴ = 2678966809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678966827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38792 + ... + 82841.

It is an arithmetic number, because the mean of its divisors is an integer number (277143069).

Almost surely, 2^2678966825 is an apocalyptic number.

2678966825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2678966825 is a deficient number, since it is larger than the sum of its proper divisors (646750003).

2678966825 is a wasteful number, since it uses less digits than its factorization.

2678966825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122524 (or 122519 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 59.

The square root of 2678966825 is about 51758.7367021260. The cubic root of 2678966825 is about 1388.8513922736.

The spelling of 2678966825 in words is "two billion, six hundred seventy-eight million, nine hundred sixty-six thousand, eight hundred twenty-five".