90547918601290 has 8 divisors (see below), whose sum is σ = 162986253482340. Its totient is φ = 36219167440512.

The previous prime is 90547918601213. The next prime is 90547918601297. The reversal of 90547918601290 is 9210681974509.

It can be written as a sum of positive squares in 2 ways, for example, as 90527746364449 + 20172236841 = 9514607^2 + 142029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (90547918601297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4527395930055 + ... + 4527395930074.

Almost surely, 2^{90547918601290} is an apocalyptic number.

90547918601290 is a deficient number, since it is larger than the sum of its proper divisors (72438334881050).

90547918601290 is a wasteful number, since it uses less digits than its factorization.

90547918601290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054791860136.

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 90547918601290 in words is "ninety trillion, five hundred forty-seven billion, nine hundred eighteen million, six hundred one thousand, two hundred ninety".