11889913993 has 8 divisors (see below), whose sum is σ = 12521265120. Its totient is φ = 11259119520.

The previous prime is 11889913991. The next prime is 11889914027. The reversal of 11889913993 is 39931998811.

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 11889913993 - 2¹ = 11889913991 is a prime.

It is a super-3 number, since 3×11889913993³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11889913991) 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, 94948 + ... + 181093.

It is an arithmetic number, because the mean of its divisors is an integer number (1565158140).

Almost surely, 2^11889913993 is an apocalyptic number.

It is an amenable number.

11889913993 is a deficient number, since it is larger than the sum of its proper divisors (631351127).

11889913993 is a wasteful number, since it uses less digits than its factorization.

11889913993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278327.

The product of its digits is 3779136, while the sum is 61.

The spelling of 11889913993 in words is "eleven billion, eight hundred eighty-nine million, nine hundred thirteen thousand, nine hundred ninety-three".