90490274687 has 8 divisors (see below), whose sum is σ = 94570592256. Its totient is φ = 86422120312.

The previous prime is 90490274647. The next prime is 90490274701. The reversal of 90490274687 is 78647209409.

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 90490274687 - 2¹⁴ = 90490258303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90490274647) 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 in 7 ways as a sum of consecutive naturals, for example, 3025583 + ... + 3055344.

It is an arithmetic number, because the mean of its divisors is an integer number (11821324032).

Almost surely, 2^90490274687 is an apocalyptic number.

90490274687 is a deficient number, since it is larger than the sum of its proper divisors (4080317569).

90490274687 is a wasteful number, since it uses less digits than its factorization.

90490274687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081597.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 90490274687 in words is "ninety billion, four hundred ninety million, two hundred seventy-four thousand, six hundred eighty-seven".