6783155882 has 4 divisors (see below), whose sum is σ = 10174733826. Its totient is φ = 3391577940.

The previous prime is 6783155861. The next prime is 6783155923. The reversal of 6783155882 is 2885513876.

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

It can be written as a sum of positive squares in only one way, i.e., 6747143881 + 36012001 = 82141^2 + 6001^2 .

It is a super-2 number, since 2×6783155882² = 92022407439022395848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695788969 + ... + 1695788972.

Almost surely, 2^6783155882 is an apocalyptic number.

6783155882 is a deficient number, since it is larger than the sum of its proper divisors (3391577944).

6783155882 is a wasteful number, since it uses less digits than its factorization.

6783155882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391577943.

The product of its digits is 3225600, while the sum is 53.

The square root of 6783155882 is about 82359.9167192391. The cubic root of 6783155882 is about 1892.9708772362.

The spelling of 6783155882 in words is "six billion, seven hundred eighty-three million, one hundred fifty-five thousand, eight hundred eighty-two".