90802612171 has 8 divisors (see below), whose sum is σ = 90905110560. Its totient is φ = 90700153152.

The previous prime is 90802612129. The next prime is 90802612181. The reversal of 90802612171 is 17121620809.

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 90802612171 - 2²³ = 90794223563 is a prime.

It is a super-2 number, since 2×90802612171² (a number of 23 digits) contains 22 as substring.

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 90802612171.

It is not an unprimeable number, because it can be changed into a prime (90802612181) 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, 7971346 + ... + 7982728.

It is an arithmetic number, because the mean of its divisors is an integer number (11363138820).

Almost surely, 2^90802612171 is an apocalyptic number.

90802612171 is a deficient number, since it is larger than the sum of its proper divisors (102498389).

90802612171 is a wasteful number, since it uses less digits than its factorization.

90802612171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19685.

The product of its (nonzero) digits is 12096, while the sum is 37.

The spelling of 90802612171 in words is "ninety billion, eight hundred two million, six hundred twelve thousand, one hundred seventy-one".