8114107781 has 16 divisors (see below), whose sum is σ = 8838232704. Its totient is φ = 7404556224.

The previous prime is 8114107723. The next prime is 8114107811. The reversal of 8114107781 is 1877014118.

It is not a de Polignac number, because 8114107781 - 2⁶ = 8114107717 is a prime.

It is a super-2 number, since 2×8114107781² (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 (8114107711) 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, 693875 + ... + 705471.

It is an arithmetic number, because the mean of its divisors is an integer number (552389544).

Almost surely, 2^8114107781 is an apocalyptic number.

It is an amenable number.

8114107781 is a deficient number, since it is larger than the sum of its proper divisors (724124923).

8114107781 is a wasteful number, since it uses less digits than its factorization.

8114107781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220.

The product of its (nonzero) digits is 12544, while the sum is 38.

The square root of 8114107781 is about 90078.3424636577. The cubic root of 8114107781 is about 2009.4641262654.

The spelling of 8114107781 in words is "eight billion, one hundred fourteen million, one hundred seven thousand, seven hundred eighty-one".