7126813867 has 8 divisors (see below), whose sum is σ = 7321921776. Its totient is φ = 6931837152.

The previous prime is 7126813853. The next prime is 7126813871. The reversal of 7126813867 is 7683186217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7126813867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7126813867.

It is not an unprimeable number, because it can be changed into a prime (7126813877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82833 + ... + 145309.

It is an arithmetic number, because the mean of its divisors is an integer number (915240222).

Almost surely, 2^7126813867 is an apocalyptic number.

7126813867 is a deficient number, since it is larger than the sum of its proper divisors (195107909).

7126813867 is a wasteful number, since it uses less digits than its factorization.

7126813867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65597.

The product of its digits is 677376, while the sum is 49.

The square root of 7126813867 is about 84420.4588177534. The cubic root of 7126813867 is about 1924.4138422913.

The spelling of 7126813867 in words is "seven billion, one hundred twenty-six million, eight hundred thirteen thousand, eight hundred sixty-seven".