90162814573 has 4 divisors (see below), whose sum is σ = 97098415708. Its totient is φ = 83227213440.

The previous prime is 90162814571. The next prime is 90162814583. The reversal of 90162814573 is 37541826109.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29881271044 + 60281543529 = 172862^2 + 245523^2 .

It is a cyclic number.

It is not a de Polignac number, because 90162814573 - 2¹ = 90162814571 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 (90162814571) 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, 3467800548 + ... + 3467800573.

It is an arithmetic number, because the mean of its divisors is an integer number (24274603927).

It is a 1-persistent number, because it is pandigital, but 2⋅90162814573 = 180325629146 is not.

Almost surely, 2^90162814573 is an apocalyptic number.

It is an amenable number.

90162814573 is a deficient number, since it is larger than the sum of its proper divisors (6935601135).

90162814573 is a wasteful number, since it uses less digits than its factorization.

90162814573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6935601134.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 90162814573 in words is "ninety billion, one hundred sixty-two million, eight hundred fourteen thousand, five hundred seventy-three".