8425697261 has 4 divisors (see below), whose sum is σ = 8426154624. Its totient is φ = 8425239900.

The previous prime is 8425697257. The next prime is 8425697317. The reversal of 8425697261 is 1627965248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8425697261 - 2² = 8425697257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8425687261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199835 + ... + 238296.

It is an arithmetic number, because the mean of its divisors is an integer number (2106538656).

Almost surely, 2^8425697261 is an apocalyptic number.

It is an amenable number.

8425697261 is a deficient number, since it is larger than the sum of its proper divisors (457363).

8425697261 is a wasteful number, since it uses less digits than its factorization.

8425697261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457362.

The product of its digits is 1451520, while the sum is 50.

The square root of 8425697261 is about 91791.5968975374. The cubic root of 8425697261 is about 2034.8635083634.

The spelling of 8425697261 in words is "eight billion, four hundred twenty-five million, six hundred ninety-seven thousand, two hundred sixty-one".