90323546536421 has 4 divisors (see below), whose sum is σ = 98534778039744. Its totient is φ = 82112315033100.

The previous prime is 90323546536319. The next prime is 90323546536439. The reversal of 90323546536421 is 12463564532309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 90323546536421 - 2¹⁸ = 90323546274277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90323546536451) 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, 4105615751645 + ... + 4105615751666.

It is an arithmetic number, because the mean of its divisors is an integer number (24633694509936).

Almost surely, 2^{90323546536421} is an apocalyptic number.

It is an amenable number.

90323546536421 is a deficient number, since it is larger than the sum of its proper divisors (8211231503323).

90323546536421 is a wasteful number, since it uses less digits than its factorization.

90323546536421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211231503322.

The product of its (nonzero) digits is 13996800, while the sum is 53.

The spelling of 90323546536421 in words is "ninety trillion, three hundred twenty-three billion, five hundred forty-six million, five hundred thirty-six thousand, four hundred twenty-one".