89115901877 has 2 divisors, whose sum is σ = 89115901878. Its totient is φ = 89115901876.

The previous prime is 89115901843. The next prime is 89115901879. The reversal of 89115901877 is 77810951198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68959285201 + 20156616676 = 262601^2 + 141974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89115901877 is a prime.

Together with 89115901879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89115901879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44557950938 + 44557950939.

It is an arithmetic number, because the mean of its divisors is an integer number (44557950939).

Almost surely, 2^89115901877 is an apocalyptic number.

It is an amenable number.

89115901877 is a deficient number, since it is larger than the sum of its proper divisors (1).

89115901877 is an equidigital number, since it uses as much as digits as its factorization.

89115901877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 56.

The spelling of 89115901877 in words is "eighty-nine billion, one hundred fifteen million, nine hundred one thousand, eight hundred seventy-seven".