4115686321 has 4 divisors (see below), whose sum is σ = 4116516592. Its totient is φ = 4114856052.

The previous prime is 4115686307. The next prime is 4115686361. The reversal of 4115686321 is 1236865114.

It is a happy number.

4115686321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1236865114 = 2 ⋅618432557.

It is a cyclic number.

It is not a de Polignac number, because 4115686321 - 2⁷ = 4115686193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4115686301) 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, 407655 + ... + 417628.

It is an arithmetic number, because the mean of its divisors is an integer number (1029129148).

Almost surely, 2^4115686321 is an apocalyptic number.

It is an amenable number.

4115686321 is a deficient number, since it is larger than the sum of its proper divisors (830271).

4115686321 is an equidigital number, since it uses as much as digits as its factorization.

4115686321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830270.

The product of its digits is 34560, while the sum is 37.

The square root of 4115686321 is about 64153.6150267465. The cubic root of 4115686321 is about 1602.5592273365.

The spelling of 4115686321 in words is "four billion, one hundred fifteen million, six hundred eighty-six thousand, three hundred twenty-one".