90517659769841 has 4 divisors (see below), whose sum is σ = 90523130122992. Its totient is φ = 90512189416692.

The previous prime is 90517659769787. The next prime is 90517659769897. The reversal of 90517659769841 is 14896795671509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90517659769841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90517659769541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735151755 + ... + 2735184848.

It is an arithmetic number, because the mean of its divisors is an integer number (22630782530748).

Almost surely, 2^{90517659769841} is an apocalyptic number.

It is an amenable number.

90517659769841 is a deficient number, since it is larger than the sum of its proper divisors (5470353151).

90517659769841 is a wasteful number, since it uses less digits than its factorization.

90517659769841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470353150.

The product of its (nonzero) digits is 1028764800, while the sum is 77.

The spelling of 90517659769841 in words is "ninety trillion, five hundred seventeen billion, six hundred fifty-nine million, seven hundred sixty-nine thousand, eight hundred forty-one".