90578786427685 has 8 divisors (see below), whose sum is σ = 111222323799840. Its totient is φ = 70777842417744.

The previous prime is 90578786427671. The next prime is 90578786427691. The reversal of 90578786427685 is 58672468787509.

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 90578786427685 - 2²³ = 90578778039077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90578786427599 and 90578786427608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210648340315 + ... + 210648340744.

It is an arithmetic number, because the mean of its divisors is an integer number (13902790474980).

Almost surely, 2^{90578786427685} is an apocalyptic number.

It is an amenable number.

90578786427685 is a deficient number, since it is larger than the sum of its proper divisors (20643537372155).

90578786427685 is a wasteful number, since it uses less digits than its factorization.

90578786427685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421296681107.

The product of its (nonzero) digits is 11379916800, while the sum is 82.

The spelling of 90578786427685 in words is "ninety trillion, five hundred seventy-eight billion, seven hundred eighty-six million, four hundred twenty-seven thousand, six hundred eighty-five".