6783733157 has 4 divisors (see below), whose sum is σ = 7017655020. Its totient is φ = 6549811296.

The previous prime is 6783733129. The next prime is 6783733199. The reversal of 6783733157 is 7513373876.

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 4821774721 + 1961958436 = 69439^2 + 44294^2 .

It is a cyclic number.

It is not a de Polignac number, because 6783733157 - 2³² = 2488765861 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 (6783733657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116960888 + ... + 116960945.

It is an arithmetic number, because the mean of its divisors is an integer number (1754413755).

Almost surely, 2^6783733157 is an apocalyptic number.

It is an amenable number.

6783733157 is a deficient number, since it is larger than the sum of its proper divisors (233921863).

6783733157 is a wasteful number, since it uses less digits than its factorization.

6783733157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233921862.

The product of its digits is 2222640, while the sum is 50.

The square root of 6783733157 is about 82363.4212317580. The cubic root of 6783733157 is about 1893.0245756318.

The spelling of 6783733157 in words is "six billion, seven hundred eighty-three million, seven hundred thirty-three thousand, one hundred fifty-seven".