8911977613 has 16 divisors (see below), whose sum is σ = 11320684416. Its totient is φ = 6813368640.

The previous prime is 8911977577. The next prime is 8911977629. The reversal of 8911977613 is 3167791198.

8911977613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8911977613 - 2³³ = 322043021 is a prime.

It is a super-2 number, since 2×8911977613² (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 (8911977413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087806 + ... + 1095967.

It is an arithmetic number, because the mean of its divisors is an integer number (707542776).

Almost surely, 2^8911977613 is an apocalyptic number.

It is an amenable number.

8911977613 is a deficient number, since it is larger than the sum of its proper divisors (2408706803).

8911977613 is a wasteful number, since it uses less digits than its factorization.

8911977613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183844.

The product of its digits is 571536, while the sum is 52.

The square root of 8911977613 is about 94403.2711986190. The cubic root of 8911977613 is about 2073.2803374866.

The spelling of 8911977613 in words is "eight billion, nine hundred eleven million, nine hundred seventy-seven thousand, six hundred thirteen".