90270290789 has 8 divisors (see below), whose sum is σ = 103186923648. Its totient is φ = 77358877200.

The previous prime is 90270290779. The next prime is 90270290801. The reversal of 90270290789 is 98709207209.

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 90270290789 - 2⁸ = 90270290533 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 90270290789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90270290779) 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, 1267682 + ... + 1336995.

It is an arithmetic number, because the mean of its divisors is an integer number (12898365456).

Almost surely, 2^90270290789 is an apocalyptic number.

It is an amenable number.

90270290789 is a deficient number, since it is larger than the sum of its proper divisors (12916632859).

90270290789 is a wasteful number, since it uses less digits than its factorization.

90270290789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609635.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 90270290789 in words is "ninety billion, two hundred seventy million, two hundred ninety thousand, seven hundred eighty-nine".