7286891667 has 16 divisors (see below), whose sum is σ = 10748401920. Its totient is φ = 4354095200.

The previous prime is 7286891657. The next prime is 7286891669. The reversal of 7286891667 is 7661986827.

It is a cyclic number.

It is not a de Polignac number, because 7286891667 - 2⁸ = 7286891411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7286891667.

It is not an unprimeable number, because it can be changed into a prime (7286891669) 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, 1552692 + ... + 1557377.

It is an arithmetic number, because the mean of its divisors is an integer number (671775120).

Almost surely, 2^7286891667 is an apocalyptic number.

7286891667 is a deficient number, since it is larger than the sum of its proper divisors (3461510253).

7286891667 is a wasteful number, since it uses less digits than its factorization.

7286891667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110154.

The product of its digits is 12192768, while the sum is 60.

The square root of 7286891667 is about 85363.2922689841. The cubic root of 7286891667 is about 1938.7155974709.

The spelling of 7286891667 in words is "seven billion, two hundred eighty-six million, eight hundred ninety-one thousand, six hundred sixty-seven".