9919622123 has 8 divisors (see below), whose sum is σ = 10290194880. Its totient is φ = 9555174720.

The previous prime is 9919622107. The next prime is 9919622129. The reversal of 9919622123 is 3212269199.

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 9919622123 - 2⁴ = 9919622107 is a prime.

It is a super-2 number, since 2×9919622123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9919622129) 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, 1528040 + ... + 1534517.

It is an arithmetic number, because the mean of its divisors is an integer number (1286274360).

Almost surely, 2^9919622123 is an apocalyptic number.

9919622123 is a deficient number, since it is larger than the sum of its proper divisors (370572757).

9919622123 is a wasteful number, since it uses less digits than its factorization.

9919622123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062677.

The product of its digits is 104976, while the sum is 44.

The square root of 9919622123 is about 99597.2997776546. The cubic root of 9919622123 is about 2148.6468588849.

The spelling of 9919622123 in words is "nine billion, nine hundred nineteen million, six hundred twenty-two thousand, one hundred twenty-three".