90789649926 has 8 divisors (see below), whose sum is σ = 181579299864. Its totient is φ = 30263216640.

The previous prime is 90789649921. The next prime is 90789649927. The reversal of 90789649926 is 62994698709.

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

90789649926 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90789649921) 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, 7565804155 + ... + 7565804166.

It is an arithmetic number, because the mean of its divisors is an integer number (22697412483).

Almost surely, 2^90789649926 is an apocalyptic number.

90789649926 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90789649926 is a wasteful number, since it uses less digits than its factorization.

90789649926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131608326.

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 90789649926 in words is "ninety billion, seven hundred eighty-nine million, six hundred forty-nine thousand, nine hundred twenty-six".