90723491412543 has 48 divisors (see below), whose sum is σ = 146285019703680. Its totient is φ = 53704437393600.

The previous prime is 90723491412529. The next prime is 90723491412551. The reversal of 90723491412543 is 34521419432709.

90723491412543 is a `hidden beast` number, since 9 + 0 + 7 + 2 + 3 + 4 + 91 + 4 + 1 + 2 + 543 = 666.

It is a Cunningham number, because it is equal to 9524888²-1.

It is not a de Polignac number, because 90723491412543 - 2⁶ = 90723491412479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90723491412543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90723491412563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 409459473 + ... + 409680981.

It is an arithmetic number, because the mean of its divisors is an integer number (3047604577160).

Almost surely, 2^{90723491412543} is an apocalyptic number.

90723491412543 is a deficient number, since it is larger than the sum of its proper divisors (55561528291137).

90723491412543 is a wasteful number, since it uses less digits than its factorization.

90723491412543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317780 (or 317777 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 90723491412543 in words is "ninety trillion, seven hundred twenty-three billion, four hundred ninety-one million, four hundred twelve thousand, five hundred forty-three".