90184742693 has 8 divisors (see below), whose sum is σ = 90287242368. Its totient is φ = 90082281744.

The previous prime is 90184742663. The next prime is 90184742717. The reversal of 90184742693 is 39624748109.

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 90184742693 - 2¹⁴ = 90184726309 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 (90184742623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8921480 + ... + 8931582.

It is an arithmetic number, because the mean of its divisors is an integer number (11285905296).

Almost surely, 2^90184742693 is an apocalyptic number.

It is an amenable number.

90184742693 is a deficient number, since it is larger than the sum of its proper divisors (102499675).

90184742693 is a wasteful number, since it uses less digits than its factorization.

90184742693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19363.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 90184742693 in words is "ninety billion, one hundred eighty-four million, seven hundred forty-two thousand, six hundred ninety-three".