8677920553 has 2 divisors, whose sum is σ = 8677920554. Its totient is φ = 8677920552.

The previous prime is 8677920523. The next prime is 8677920577. The reversal of 8677920553 is 3550297768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5162853609 + 3515066944 = 71853^2 + 59288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8677920553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8677920553.

It is not a weakly prime, because it can be changed into another prime (8677920523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4338960276 + 4338960277.

It is an arithmetic number, because the mean of its divisors is an integer number (4338960277).

Almost surely, 2^8677920553 is an apocalyptic number.

It is an amenable number.

8677920553 is a deficient number, since it is larger than the sum of its proper divisors (1).

8677920553 is an equidigital number, since it uses as much as digits as its factorization.

8677920553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The square root of 8677920553 is about 93155.3570815978. The cubic root of 8677920553 is about 2054.9687563600.

The spelling of 8677920553 in words is "eight billion, six hundred seventy-seven million, nine hundred twenty thousand, five hundred fifty-three".