90802875485 has 8 divisors (see below), whose sum is σ = 124529657856. Its totient is φ = 62264828880.

The previous prime is 90802875481. The next prime is 90802875529. The reversal of 90802875485 is 58457820809.

It is a happy number.

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

It is not a de Polignac number, because 90802875485 - 2² = 90802875481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90802875485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90802875481) 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, 1297183901 + ... + 1297183970.

It is an arithmetic number, because the mean of its divisors is an integer number (15566207232).

Almost surely, 2^90802875485 is an apocalyptic number.

It is an amenable number.

90802875485 is a deficient number, since it is larger than the sum of its proper divisors (33726782371).

90802875485 is a wasteful number, since it uses less digits than its factorization.

90802875485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594367883.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 90802875485 in words is "ninety billion, eight hundred two million, eight hundred seventy-five thousand, four hundred eighty-five".