90774626558 has 32 divisors (see below), whose sum is σ = 169779248640. Its totient is φ = 35362798560.

The previous prime is 90774626507. The next prime is 90774626563. The reversal of 90774626558 is 85562647709.

It is a junction number, because it is equal to n+sod(n) for n = 90774626497 and 90774626506.

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 15 ways as a sum of consecutive naturals, for example, 1625423 + ... + 1680341.

It is an arithmetic number, because the mean of its divisors is an integer number (5305601520).

Almost surely, 2^90774626558 is an apocalyptic number.

90774626558 is a deficient number, since it is larger than the sum of its proper divisors (79004622082).

90774626558 is a wasteful number, since it uses less digits than its factorization.

90774626558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65672.

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 90774626558 in words is "ninety billion, seven hundred seventy-four million, six hundred twenty-six thousand, five hundred fifty-eight".