6551231078 has 16 divisors (see below), whose sum is σ = 11891310624. Its totient is φ = 2642513280.

The previous prime is 6551231077. The next prime is 6551231083. The reversal of 6551231078 is 8701321556.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551231077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13762853 + ... + 13763328.

It is an arithmetic number, because the mean of its divisors is an integer number (743206914).

Almost surely, 2^6551231078 is an apocalyptic number.

6551231078 is a deficient number, since it is larger than the sum of its proper divisors (5340079546).

6551231078 is a wasteful number, since it uses less digits than its factorization.

6551231078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27526207.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 6551231078 is about 80939.6755491397. The cubic root of 6551231078 is about 1871.1458444901.

The spelling of 6551231078 in words is "six billion, five hundred fifty-one million, two hundred thirty-one thousand, seventy-eight".