12088486861 has 4 divisors (see below), whose sum is σ = 13187440224. Its totient is φ = 10989533500.

The previous prime is 12088486849. The next prime is 12088486913. The reversal of 12088486861 is 16868488021.

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 not a de Polignac number, because 12088486861 - 2⁵ = 12088486829 is a prime.

It is a super-2 number, since 2×12088486861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12088486799 and 12088486808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12088486801) 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, 549476665 + ... + 549476686.

It is an arithmetic number, because the mean of its divisors is an integer number (3296860056).

Almost surely, 2^12088486861 is an apocalyptic number.

12088486861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12088486861 is a deficient number, since it is larger than the sum of its proper divisors (1098953363).

12088486861 is a wasteful number, since it uses less digits than its factorization.

12088486861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098953362.

The product of its (nonzero) digits is 1179648, while the sum is 52.

The spelling of 12088486861 in words is "twelve billion, eighty-eight million, four hundred eighty-six thousand, eight hundred sixty-one".