8725991079 has 16 divisors (see below), whose sum is σ = 12556716032. Its totient is φ = 5358231648.

The previous prime is 8725991063. The next prime is 8725991143. The reversal of 8725991079 is 9701995278.

It is not a de Polignac number, because 8725991079 - 2⁴ = 8725991063 is a prime.

It is a super-2 number, since 2×8725991079² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725995079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223567 + ... + 259680.

It is an arithmetic number, because the mean of its divisors is an integer number (784794752).

Almost surely, 2^8725991079 is an apocalyptic number.

8725991079 is a deficient number, since it is larger than the sum of its proper divisors (3830724953).

8725991079 is a wasteful number, since it uses less digits than its factorization.

8725991079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483726.

The product of its (nonzero) digits is 2857680, while the sum is 57.

The square root of 8725991079 is about 93413.0134349599. The cubic root of 8725991079 is about 2058.7562070203.

The spelling of 8725991079 in words is "eight billion, seven hundred twenty-five million, nine hundred ninety-one thousand, seventy-nine".