90194695306 has 4 divisors (see below), whose sum is σ = 135292042962. Its totient is φ = 45097347652.

The previous prime is 90194695301. The next prime is 90194695363. The reversal of 90194695306 is 60359649109.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81547369225 + 8647326081 = 285565^2 + 92991^2 .

It is a super-2 number, since 2×90194695306² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90194695301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22548673825 + ... + 22548673828.

Almost surely, 2^90194695306 is an apocalyptic number.

90194695306 is a deficient number, since it is larger than the sum of its proper divisors (45097347656).

90194695306 is a wasteful number, since it uses less digits than its factorization.

90194695306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45097347655.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 90194695306 in words is "ninety billion, one hundred ninety-four million, six hundred ninety-five thousand, three hundred six".