6719137973 has 4 divisors (see below), whose sum is σ = 6719567148. Its totient is φ = 6718708800.

The previous prime is 6719137967. The next prime is 6719137981. The reversal of 6719137973 is 3797319176.

It is a happy number.

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 6046928644 + 672209329 = 77762^2 + 25927^2 .

It is a cyclic number.

It is not a de Polignac number, because 6719137973 - 2²⁴ = 6702360757 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 (6719137993) 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, 190178 + ... + 222723.

It is an arithmetic number, because the mean of its divisors is an integer number (1679891787).

Almost surely, 2^6719137973 is an apocalyptic number.

It is an amenable number.

6719137973 is a deficient number, since it is larger than the sum of its proper divisors (429175).

6719137973 is a wasteful number, since it uses less digits than its factorization.

6719137973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429174.

The product of its digits is 1500282, while the sum is 53.

The square root of 6719137973 is about 81970.3481327242. The cubic root of 6719137973 is about 1886.9968986049.

The spelling of 6719137973 in words is "six billion, seven hundred nineteen million, one hundred thirty-seven thousand, nine hundred seventy-three".