7089438819 has 4 divisors (see below), whose sum is σ = 9452585096. Its totient is φ = 4726292544.

The previous prime is 7089438817. The next prime is 7089438893. The reversal of 7089438819 is 9188349807.

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

It is not a de Polignac number, because 7089438819 - 2¹ = 7089438817 is a prime.

It is a super-2 number, since 2×7089438819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7089438817) 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, 1181573134 + ... + 1181573139.

It is an arithmetic number, because the mean of its divisors is an integer number (2363146274).

Almost surely, 2^7089438819 is an apocalyptic number.

7089438819 is a deficient number, since it is larger than the sum of its proper divisors (2363146277).

7089438819 is a wasteful number, since it uses less digits than its factorization.

7089438819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363146276.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 7089438819 is about 84198.8053300045. The cubic root of 7089438819 is about 1921.0438857427.

The spelling of 7089438819 in words is "seven billion, eighty-nine million, four hundred thirty-eight thousand, eight hundred nineteen".