90690605283 has 8 divisors (see below), whose sum is σ = 120927369808. Its totient is φ = 60457122144.

The previous prime is 90690605281. The next prime is 90690605311. The reversal of 90690605283 is 38250609609.

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

It is not a de Polignac number, because 90690605283 - 2¹ = 90690605281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90690605281) 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, 755116 + ... + 866937.

It is an arithmetic number, because the mean of its divisors is an integer number (15115921226).

Almost surely, 2^90690605283 is an apocalyptic number.

90690605283 is a deficient number, since it is larger than the sum of its proper divisors (30236764525).

90690605283 is a wasteful number, since it uses less digits than its factorization.

90690605283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640693.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 90690605283 in words is "ninety billion, six hundred ninety million, six hundred five thousand, two hundred eighty-three".