90506065085782 has 8 divisors (see below), whose sum is σ = 142904313293400. Its totient is φ = 42871293987984.

The previous prime is 90506065085773. The next prime is 90506065085833. The reversal of 90506065085782 is 28758056060509.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 90506065085782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190869277407 + ... + 1190869277482.

It is an arithmetic number, because the mean of its divisors is an integer number (17863039161675).

Almost surely, 2^{90506065085782} is an apocalyptic number.

90506065085782 is a deficient number, since it is larger than the sum of its proper divisors (52398248207618).

90506065085782 is a wasteful number, since it uses less digits than its factorization.

90506065085782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381738554910.

The product of its (nonzero) digits is 36288000, while the sum is 61.

The spelling of 90506065085782 in words is "ninety trillion, five hundred six billion, sixty-five million, eighty-five thousand, seven hundred eighty-two".