11864707021 has 8 divisors (see below), whose sum is σ = 12381856704. Its totient is φ = 11347665120.

The previous prime is 11864706989. The next prime is 11864707027. The reversal of 11864707021 is 12070746811.

11864707021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11864707021 - 2⁵ = 11864706989 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 (11864707027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265806 + ... + 307216.

It is an arithmetic number, because the mean of its divisors is an integer number (1547732088).

Almost surely, 2^11864707021 is an apocalyptic number.

It is an amenable number.

11864707021 is a deficient number, since it is larger than the sum of its proper divisors (517149683).

11864707021 is a wasteful number, since it uses less digits than its factorization.

11864707021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53891.

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 11864707021 in words is "eleven billion, eight hundred sixty-four million, seven hundred seven thousand, twenty-one".