89756501969 has 2 divisors, whose sum is σ = 89756501970. Its totient is φ = 89756501968.

The previous prime is 89756501903. The next prime is 89756501971. The reversal of 89756501969 is 96910565798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85227211969 + 4529290000 = 291937^2 + 67300^2 .

It is a cyclic number.

It is not a de Polignac number, because 89756501969 - 2²⁰ = 89755453393 is a prime.

It is a super-2 number, since 2×89756501969² (a number of 23 digits) contains 22 as substring.

Together with 89756501971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89756504969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44878250984 + 44878250985.

It is an arithmetic number, because the mean of its divisors is an integer number (44878250985).

Almost surely, 2^89756501969 is an apocalyptic number.

It is an amenable number.

89756501969 is a deficient number, since it is larger than the sum of its proper divisors (1).

89756501969 is an equidigital number, since it uses as much as digits as its factorization.

89756501969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36741600, while the sum is 65.

The spelling of 89756501969 in words is "eighty-nine billion, seven hundred fifty-six million, five hundred one thousand, nine hundred sixty-nine".