90598085281 has 8 divisors (see below), whose sum is σ = 99028454400. Its totient is φ = 82200079440.

The previous prime is 90598085273. The next prime is 90598085321. The reversal of 90598085281 is 18258089509.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90598085281 - 2³ = 90598085273 is a prime.

It is a super-2 number, since 2×90598085281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90598085251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8084961 + ... + 8096158.

It is an arithmetic number, because the mean of its divisors is an integer number (12378556800).

Almost surely, 2^90598085281 is an apocalyptic number.

It is an amenable number.

90598085281 is a deficient number, since it is larger than the sum of its proper divisors (8430369119).

90598085281 is a wasteful number, since it uses less digits than its factorization.

90598085281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16181639.

The product of its (nonzero) digits is 2073600, while the sum is 55.

The spelling of 90598085281 in words is "ninety billion, five hundred ninety-eight million, eighty-five thousand, two hundred eighty-one".