90943573445 has 32 divisors (see below), whose sum is σ = 111052032000. Its totient is φ = 71488376064.

The previous prime is 90943573421. The next prime is 90943573481. The reversal of 90943573445 is 54437534909.

It is a cyclic number.

It is not a de Polignac number, because 90943573445 - 2³⁶ = 22224096709 is a prime.

It is a super-2 number, since 2×90943573445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40079771 + ... + 40082039.

It is an arithmetic number, because the mean of its divisors is an integer number (3470376000).

Almost surely, 2^90943573445 is an apocalyptic number.

It is an amenable number.

90943573445 is a deficient number, since it is larger than the sum of its proper divisors (20108458555).

90943573445 is a wasteful number, since it uses less digits than its factorization.

90943573445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 90943573445 in words is "ninety billion, nine hundred forty-three million, five hundred seventy-three thousand, four hundred forty-five".