7287878671 has 2 divisors, whose sum is σ = 7287878672. Its totient is φ = 7287878670.

The previous prime is 7287878627. The next prime is 7287878687. The reversal of 7287878671 is 1768787827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7287878671 - 2²⁵ = 7254324239 is a prime.

It is a super-3 number, since 3×7287878671³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7287872671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3643939335 + 3643939336.

It is an arithmetic number, because the mean of its divisors is an integer number (3643939336).

Almost surely, 2^7287878671 is an apocalyptic number.

7287878671 is a deficient number, since it is larger than the sum of its proper divisors (1).

7287878671 is an equidigital number, since it uses as much as digits as its factorization.

7287878671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14751744, while the sum is 61.

The square root of 7287878671 is about 85369.0732701252. The cubic root of 7287878671 is about 1938.8031260426.

The spelling of 7287878671 in words is "seven billion, two hundred eighty-seven million, eight hundred seventy-eight thousand, six hundred seventy-one".