90290750026 has 4 divisors (see below), whose sum is σ = 135436125042. Its totient is φ = 45145375012.

The previous prime is 90290750023. The next prime is 90290750029. The reversal of 90290750026 is 62005709209.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (90290750023) and next prime (90290750029).

It can be written as a sum of positive squares in only one way, i.e., 74801703001 + 15489047025 = 273499^2 + 124455^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (90290750023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572687505 + ... + 22572687508.

Almost surely, 2^90290750026 is an apocalyptic number.

90290750026 is a deficient number, since it is larger than the sum of its proper divisors (45145375016).

90290750026 is a wasteful number, since it uses less digits than its factorization.

90290750026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45145375015.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 90290750026 in words is "ninety billion, two hundred ninety million, seven hundred fifty thousand, twenty-six".