9890775746 has 8 divisors (see below), whose sum is σ = 15708879180. Its totient is φ = 4654482688.

The previous prime is 9890775743. The next prime is 9890775781. The reversal of 9890775746 is 6475770989.

It can be written as a sum of positive squares in 2 ways, for example, as 8880235225 + 1010540521 = 94235^2 + 31789^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9890775743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145452551 + ... + 145452618.

Almost surely, 2^9890775746 is an apocalyptic number.

9890775746 is a deficient number, since it is larger than the sum of its proper divisors (5818103434).

9890775746 is a wasteful number, since it uses less digits than its factorization.

9890775746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290905188.

The product of its (nonzero) digits is 26671680, while the sum is 62.

The square root of 9890775746 is about 99452.3792877777. The cubic root of 9890775746 is about 2146.5620733292.

The spelling of 9890775746 in words is "nine billion, eight hundred ninety million, seven hundred seventy-five thousand, seven hundred forty-six".