90412107557 has 2 divisors, whose sum is σ = 90412107558. Its totient is φ = 90412107556.

The previous prime is 90412107521. The next prime is 90412107559. The reversal of 90412107557 is 75570121409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80111075521 + 10301032036 = 283039^2 + 101494^2 .

It is a cyclic number.

It is not a de Polignac number, because 90412107557 - 2³⁶ = 21692630821 is a prime.

Together with 90412107559, 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 (90412107559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45206053778 + 45206053779.

It is an arithmetic number, because the mean of its divisors is an integer number (45206053779).

Almost surely, 2^90412107557 is an apocalyptic number.

It is an amenable number.

90412107557 is a deficient number, since it is larger than the sum of its proper divisors (1).

90412107557 is an equidigital number, since it uses as much as digits as its factorization.

90412107557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 90412107557 in words is "ninety billion, four hundred twelve million, one hundred seven thousand, five hundred fifty-seven".