89407355969 has 2 divisors, whose sum is σ = 89407355970. Its totient is φ = 89407355968.

The previous prime is 89407355903. The next prime is 89407355977. The reversal of 89407355969 is 96955370498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44970715969 + 44436640000 = 212063^2 + 210800^2 .

It is a cyclic number.

It is not a de Polignac number, because 89407355969 - 2²⁸ = 89138920513 is a prime.

It is a super-2 number, since 2×89407355969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89407355269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44703677984 + 44703677985.

It is an arithmetic number, because the mean of its divisors is an integer number (44703677985).

Almost surely, 2^89407355969 is an apocalyptic number.

It is an amenable number.

89407355969 is a deficient number, since it is larger than the sum of its proper divisors (1).

89407355969 is an equidigital number, since it uses as much as digits as its factorization.

89407355969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73483200, while the sum is 65.

The spelling of 89407355969 in words is "eighty-nine billion, four hundred seven million, three hundred fifty-five thousand, nine hundred sixty-nine".