90610389994 has 8 divisors (see below), whose sum is σ = 136781289828. Its totient is φ = 45016626720.

The previous prime is 90610389971. The next prime is 90610390001. The reversal of 90610389994 is 49998301609.

It can be written as a sum of positive squares in 2 ways, for example, as 86649575769 + 3960814225 = 294363^2 + 62935^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 144283747 + ... + 144284374.

Almost surely, 2^90610389994 is an apocalyptic number.

90610389994 is a deficient number, since it is larger than the sum of its proper divisors (46170899834).

90610389994 is a wasteful number, since it uses less digits than its factorization.

90610389994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288568280.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 90610389994 in words is "ninety billion, six hundred ten million, three hundred eighty-nine thousand, nine hundred ninety-four".