11862084021 has 4 divisors (see below), whose sum is σ = 15816112032. Its totient is φ = 7908056012.

The previous prime is 11862084007. The next prime is 11862084037. The reversal of 11862084021 is 12048026811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11862084021 - 2⁹ = 11862083509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11862084041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1977014001 + ... + 1977014006.

It is an arithmetic number, because the mean of its divisors is an integer number (3954028008).

Almost surely, 2^11862084021 is an apocalyptic number.

It is an amenable number.

11862084021 is a deficient number, since it is larger than the sum of its proper divisors (3954028011).

11862084021 is an equidigital number, since it uses as much as digits as its factorization.

11862084021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954028010.

The product of its (nonzero) digits is 6144, while the sum is 33.

The spelling of 11862084021 in words is "eleven billion, eight hundred sixty-two million, eighty-four thousand, twenty-one".