7872889269 has 16 divisors (see below), whose sum is σ = 12009019392. Its totient is φ = 4494205488.

The previous prime is 7872889253. The next prime is 7872889303. The reversal of 7872889269 is 9629882787.

It is a happy number.

It is not a de Polignac number, because 7872889269 - 2⁴ = 7872889253 is a prime.

It is a super-2 number, since 2×7872889269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872884269) 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, 170049 + ... + 211334.

It is an arithmetic number, because the mean of its divisors is an integer number (750563712).

Almost surely, 2^7872889269 is an apocalyptic number.

It is an amenable number.

7872889269 is a deficient number, since it is larger than the sum of its proper divisors (4136130123).

7872889269 is a wasteful number, since it uses less digits than its factorization.

7872889269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382376.

The product of its digits is 48771072, while the sum is 66.

The square root of 7872889269 is about 88729.3033275930. The cubic root of 7872889269 is about 1989.3508373899.

The spelling of 7872889269 in words is "seven billion, eight hundred seventy-two million, eight hundred eighty-nine thousand, two hundred sixty-nine".