6778072533 has 32 divisors (see below), whose sum is σ = 9804758400. Its totient is φ = 4149057536.

The previous prime is 6778072501. The next prime is 6778072547. The reversal of 6778072533 is 3352708776.

It is not a de Polignac number, because 6778072533 - 2⁵ = 6778072501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778072583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476833 + ... + 490841.

It is an arithmetic number, because the mean of its divisors is an integer number (306398700).

Almost surely, 2^6778072533 is an apocalyptic number.

It is an amenable number.

6778072533 is a deficient number, since it is larger than the sum of its proper divisors (3026685867).

6778072533 is a wasteful number, since it uses less digits than its factorization.

6778072533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14261.

The product of its (nonzero) digits is 1481760, while the sum is 48.

The square root of 6778072533 is about 82329.0503589104. The cubic root of 6778072533 is about 1892.4978901024.

The spelling of 6778072533 in words is "six billion, seven hundred seventy-eight million, seventy-two thousand, five hundred thirty-three".