90235743329621 has 8 divisors (see below), whose sum is σ = 90367081902240. Its totient is φ = 90104416213968.

The previous prime is 90235743329609. The next prime is 90235743329663. The reversal of 90235743329621 is 12692334753209.

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 90235743329621 - 2¹⁴ = 90235743313237 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 (90235743349621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12962930 + ... + 18668396.

It is an arithmetic number, because the mean of its divisors is an integer number (11295885237780).

Almost surely, 2^{90235743329621} is an apocalyptic number.

It is an amenable number.

90235743329621 is a deficient number, since it is larger than the sum of its proper divisors (131338572619).

90235743329621 is a wasteful number, since it uses less digits than its factorization.

90235743329621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728483.

The product of its (nonzero) digits is 14696640, while the sum is 56.

The spelling of 90235743329621 in words is "ninety trillion, two hundred thirty-five billion, seven hundred forty-three million, three hundred twenty-nine thousand, six hundred twenty-one".