89512647929 has 2 divisors, whose sum is σ = 89512647930. Its totient is φ = 89512647928.

The previous prime is 89512647907. The next prime is 89512647979. The reversal of 89512647929 is 92974621598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87363398329 + 2149249600 = 295573^2 + 46360^2 .

It is a cyclic number.

It is not a de Polignac number, because 89512647929 - 2⁸ = 89512647673 is a prime.

It is a super-2 number, since 2×89512647929² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89512647979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44756323964 + 44756323965.

It is an arithmetic number, because the mean of its divisors is an integer number (44756323965).

Almost surely, 2^89512647929 is an apocalyptic number.

It is an amenable number.

89512647929 is a deficient number, since it is larger than the sum of its proper divisors (1).

89512647929 is an equidigital number, since it uses as much as digits as its factorization.

89512647929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 62.

The spelling of 89512647929 in words is "eighty-nine billion, five hundred twelve million, six hundred forty-seven thousand, nine hundred twenty-nine".