8381740680725 has 24 divisors (see below), whose sum is σ = 10549313262048. Its totient is φ = 6604792286400.

The previous prime is 8381740680487. The next prime is 8381740680767. The reversal of 8381740680725 is 5270860471838.

It is not a de Polignac number, because 8381740680725 - 2¹⁰ = 8381740679701 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 21830915 + ... + 22211535.

It is an arithmetic number, because the mean of its divisors is an integer number (439554719252).

Almost surely, 2^{8381740680725} is an apocalyptic number.

It is an amenable number.

8381740680725 is a deficient number, since it is larger than the sum of its proper divisors (2167572581323).

8381740680725 is a wasteful number, since it uses less digits than its factorization.

8381740680725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393845 (or 393840 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 8381740680725 in words is "eight trillion, three hundred eighty-one billion, seven hundred forty million, six hundred eighty thousand, seven hundred twenty-five".