8981400678725 has 12 divisors (see below), whose sum is σ = 11198466885060. Its totient is φ = 7145423740800.

The previous prime is 8981400678689. The next prime is 8981400678737. The reversal of 8981400678725 is 5278760041898.

It can be written as a sum of positive squares in 6 ways, for example, as 1175953723396 + 7805446955329 = 1084414^2 + 2793823^2 .

It is not a de Polignac number, because 8981400678725 - 2⁸ = 8981400678469 is a prime.

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, 992415440 + ... + 992424489.

It is an arithmetic number, because the mean of its divisors is an integer number (933205573755).

Almost surely, 2^{8981400678725} is an apocalyptic number.

It is an amenable number.

8981400678725 is a deficient number, since it is larger than the sum of its proper divisors (2217066206335).

8981400678725 is a wasteful number, since it uses less digits than its factorization.

8981400678725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984840120 (or 1984840115 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 65.

The spelling of 8981400678725 in words is "eight trillion, nine hundred eighty-one billion, four hundred million, six hundred seventy-eight thousand, seven hundred twenty-five".