7872294293 has 4 divisors (see below), whose sum is σ = 7883398380. Its totient is φ = 7861190208.

The previous prime is 7872294271. The next prime is 7872294319. The reversal of 7872294293 is 3924922787.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4702942084 + 3169352209 = 68578^2 + 56297^2 .

It is a cyclic number.

It is not a de Polignac number, because 7872294293 - 2⁶ = 7872294229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872294253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550980 + ... + 5552397.

It is an arithmetic number, because the mean of its divisors is an integer number (1970849595).

Almost surely, 2^7872294293 is an apocalyptic number.

It is an amenable number.

7872294293 is a deficient number, since it is larger than the sum of its proper divisors (11104087).

7872294293 is a wasteful number, since it uses less digits than its factorization.

7872294293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104086.

The product of its digits is 3048192, while the sum is 53.

The square root of 7872294293 is about 88725.9505049115. The cubic root of 7872294293 is about 1989.3007225472.

The spelling of 7872294293 in words is "seven billion, eight hundred seventy-two million, two hundred ninety-four thousand, two hundred ninety-three".