90063557673 has 4 divisors (see below), whose sum is σ = 120084743568. Its totient is φ = 60042371780.

The previous prime is 90063557669. The next prime is 90063557737. The reversal of 90063557673 is 37675536009.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 90063557673 - 2² = 90063557669 is a prime.

It is a super-2 number, since 2×90063557673² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90063557653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15010592943 + ... + 15010592948.

It is an arithmetic number, because the mean of its divisors is an integer number (30021185892).

Almost surely, 2^90063557673 is an apocalyptic number.

It is an amenable number.

90063557673 is a deficient number, since it is larger than the sum of its proper divisors (30021185895).

90063557673 is a wasteful number, since it uses less digits than its factorization.

90063557673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30021185894.

The product of its (nonzero) digits is 3572100, while the sum is 51.

The spelling of 90063557673 in words is "ninety billion, sixty-three million, five hundred fifty-seven thousand, six hundred seventy-three".