90369733647 has 8 divisors (see below), whose sum is σ = 120500288944. Its totient is φ = 60242833728.

The previous prime is 90369733637. The next prime is 90369733667. The reversal of 90369733647 is 74633796309.

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

It is not a de Polignac number, because 90369733647 - 2¹⁸ = 90369471503 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 (90369733637) 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, 855628 + ... + 955425.

It is an arithmetic number, because the mean of its divisors is an integer number (15062536118).

Almost surely, 2^90369733647 is an apocalyptic number.

90369733647 is a deficient number, since it is larger than the sum of its proper divisors (30130555297).

90369733647 is a wasteful number, since it uses less digits than its factorization.

90369733647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827689.

The product of its (nonzero) digits is 15431472, while the sum is 57.

The spelling of 90369733647 in words is "ninety billion, three hundred sixty-nine million, seven hundred thirty-three thousand, six hundred forty-seven".