9879990011 has 8 divisors (see below), whose sum is σ = 10462982544. Its totient is φ = 9297199360.

The previous prime is 9879989981. The next prime is 9879990049. The reversal of 9879990011 is 1100999789.

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

It is not a de Polignac number, because 9879990011 - 2¹⁴ = 9879973627 is a prime.

It is a super-2 number, since 2×9879990011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (9879990091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56831 + ... + 151623.

It is an arithmetic number, because the mean of its divisors is an integer number (1307872818).

Almost surely, 2^9879990011 is an apocalyptic number.

9879990011 is a deficient number, since it is larger than the sum of its proper divisors (582992533).

9879990011 is a wasteful number, since it uses less digits than its factorization.

9879990011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100941.

The product of its (nonzero) digits is 367416, while the sum is 53.

The square root of 9879990011 is about 99398.1388709064. The cubic root of 9879990011 is about 2145.7815255035.

The spelling of 9879990011 in words is "nine billion, eight hundred seventy-nine million, nine hundred ninety thousand, eleven".