90688227426 has 96 divisors (see below), whose sum is σ = 209996212608. Its totient is φ = 29314431360.

The previous prime is 90688227403. The next prime is 90688227431. The reversal of 90688227426 is 62472288609.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3314016 + ... + 3341268.

It is an arithmetic number, because the mean of its divisors is an integer number (2187460548).

Almost surely, 2^90688227426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90688227426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104998106304).

90688227426 is an abundant number, since it is smaller than the sum of its proper divisors (119307985182).

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

90688227426 is a wasteful number, since it uses less digits than its factorization.

90688227426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27478 (or 27466 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 90688227426 in words is "ninety billion, six hundred eighty-eight million, two hundred twenty-seven thousand, four hundred twenty-six".