90749771111 has 8 divisors (see below), whose sum is σ = 90972875280. Its totient is φ = 90526730112.

The previous prime is 90749771107. The next prime is 90749771179. The reversal of 90749771111 is 11117794709.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90749771111 - 2² = 90749771107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90749771191) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4245296 + ... + 4266618.

It is an arithmetic number, because the mean of its divisors is an integer number (11371609410).

Almost surely, 2^90749771111 is an apocalyptic number.

90749771111 is a deficient number, since it is larger than the sum of its proper divisors (223104169).

90749771111 is a wasteful number, since it uses less digits than its factorization.

90749771111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31585.

The product of its (nonzero) digits is 111132, while the sum is 47.

The spelling of 90749771111 in words is "ninety billion, seven hundred forty-nine million, seven hundred seventy-one thousand, one hundred eleven".