886115181878021 has 16 divisors (see below), whose sum is σ = 976281434993664. Its totient is φ = 800845402017024.

The previous prime is 886115181878011. The next prime is 886115181878053. The reversal of 886115181878021 is 120878181511688.

It is a cyclic number.

It is not a de Polignac number, because 886115181878021 - 2⁶ = 886115181877957 is a prime.

It is a super-3 number, since 3×886115181878021³ (a number of 46 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (886115181878011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10462507325 + ... + 10462592018.

It is an arithmetic number, because the mean of its divisors is an integer number (61017589687104).

Almost surely, 2^{886115181878021} is an apocalyptic number.

It is an amenable number.

886115181878021 is a deficient number, since it is larger than the sum of its proper divisors (90166253115643).

886115181878021 is a wasteful number, since it uses less digits than its factorization.

886115181878021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20925099460.

The product of its (nonzero) digits is 13762560, while the sum is 65.

The spelling of 886115181878021 in words is "eight hundred eighty-six trillion, one hundred fifteen billion, one hundred eighty-one million, eight hundred seventy-eight thousand, twenty-one".