8725577679 has 48 divisors (see below), whose sum is σ = 15557348352. Its totient is φ = 4589089344.

The previous prime is 8725577669. The next prime is 8725577687. The reversal of 8725577679 is 9767755278.

8725577679 is a `hidden beast` number, since 8 + 7 + 2 + 557 + 7 + 6 + 79 = 666.

It is not a de Polignac number, because 8725577679 - 2¹² = 8725573583 is a prime.

It is a super-2 number, since 2×8725577679² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725577669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 268842 + ... + 299544.

It is an arithmetic number, because the mean of its divisors is an integer number (324111424).

Almost surely, 2^8725577679 is an apocalyptic number.

8725577679 is a deficient number, since it is larger than the sum of its proper divisors (6831770673).

8725577679 is a wasteful number, since it uses less digits than its factorization.

8725577679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31076 (or 31073 counting only the distinct ones).

The product of its digits is 51861600, while the sum is 63.

The square root of 8725577679 is about 93410.8006549564. The cubic root of 8725577679 is about 2058.7236948297.

The spelling of 8725577679 in words is "eight billion, seven hundred twenty-five million, five hundred seventy-seven thousand, six hundred seventy-nine".