7279268861 has 4 divisors (see below), whose sum is σ = 7280004000. Its totient is φ = 7278533724.

The previous prime is 7279268849. The next prime is 7279268881. The reversal of 7279268861 is 1688629727.

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.

It is a cyclic number.

It is not a de Polignac number, because 7279268861 - 2¹⁰ = 7279267837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7279268797 and 7279268806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7279268881) 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, 352511 + ... + 372588.

It is an arithmetic number, because the mean of its divisors is an integer number (1820001000).

Almost surely, 2^7279268861 is an apocalyptic number.

It is an amenable number.

7279268861 is a deficient number, since it is larger than the sum of its proper divisors (735139).

7279268861 is a wasteful number, since it uses less digits than its factorization.

7279268861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735138.

The product of its digits is 4064256, while the sum is 56.

The square root of 7279268861 is about 85318.6313826001. The cubic root of 7279268861 is about 1938.0393324825.

The spelling of 7279268861 in words is "seven billion, two hundred seventy-nine million, two hundred sixty-eight thousand, eight hundred sixty-one".