90194254307620 has 24 divisors (see below), whose sum is σ = 189935532763200. Its totient is φ = 35977206729312.

The previous prime is 90194254307557. The next prime is 90194254307621. The reversal of 90194254307620 is 2670345249109.

It is not an unprimeable number, because it can be changed into a prime (90194254307621) 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, 6280929750 + ... + 6280944109.

It is an arithmetic number, because the mean of its divisors is an integer number (7913980531800).

Almost surely, 2^{90194254307620} is an apocalyptic number.

It is an amenable number.

90194254307620 is an abundant number, since it is smaller than the sum of its proper divisors (99741278455580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90194254307620 is a wasteful number, since it uses less digits than its factorization.

90194254307620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12561874227 (or 12561874225 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 90194254307620 in words is "ninety trillion, one hundred ninety-four billion, two hundred fifty-four million, three hundred seven thousand, six hundred twenty".