90578606673 has 8 divisors (see below), whose sum is σ = 121303509408. Its totient is φ = 60119720864.

The previous prime is 90578606623. The next prime is 90578606689. The reversal of 90578606673 is 37660687509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90578606673 - 2⁶ = 90578606609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90578606623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66503436 + ... + 66504797.

It is an arithmetic number, because the mean of its divisors is an integer number (15162938676).

Almost surely, 2^90578606673 is an apocalyptic number.

It is an amenable number.

90578606673 is a deficient number, since it is larger than the sum of its proper divisors (30724902735).

90578606673 is a wasteful number, since it uses less digits than its factorization.

90578606673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133008463.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 90578606673 in words is "ninety billion, five hundred seventy-eight million, six hundred six thousand, six hundred seventy-three".