8861419381 has 4 divisors (see below), whose sum is σ = 8887714732. Its totient is φ = 8835124032.

The previous prime is 8861419361. The next prime is 8861419459. The reversal of 8861419381 is 1839141688.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 780308356 + 8081111025 = 27934^2 + 89895^2 .

It is a cyclic number.

It is not a de Polignac number, because 8861419381 - 2⁵ = 8861419349 is a prime.

It is a super-2 number, since 2×8861419381² (a number of 21 digits) contains 22 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 (8861419351) 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, 13147170 + ... + 13147843.

It is an arithmetic number, because the mean of its divisors is an integer number (2221928683).

Almost surely, 2^8861419381 is an apocalyptic number.

It is an amenable number.

8861419381 is a deficient number, since it is larger than the sum of its proper divisors (26295351).

8861419381 is a wasteful number, since it uses less digits than its factorization.

8861419381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26295350.

The product of its digits is 331776, while the sum is 49.

The square root of 8861419381 is about 94135.1123704646. The cubic root of 8861419381 is about 2069.3522817285.

The spelling of 8861419381 in words is "eight billion, eight hundred sixty-one million, four hundred nineteen thousand, three hundred eighty-one".