6781032261291 has 16 divisors (see below), whose sum is σ = 9065497909248. Its totient is φ = 4508631312000.

The previous prime is 6781032261247. The next prime is 6781032261299. The reversal of 6781032261291 is 1921622301876.

It is not a de Polignac number, because 6781032261291 - 2⁷ = 6781032261163 is a prime.

It is a super-3 number, since 3×6781032261291³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6781032261291.

It is not an unprimeable number, because it can be changed into a prime (6781032261299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6479890 + ... + 7453256.

It is an arithmetic number, because the mean of its divisors is an integer number (566593619328).

Almost surely, 2^{6781032261291} is an apocalyptic number.

6781032261291 is a deficient number, since it is larger than the sum of its proper divisors (2284465647957).

6781032261291 is a wasteful number, since it uses less digits than its factorization.

6781032261291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979562.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 6781032261291 in words is "six trillion, seven hundred eighty-one billion, thirty-two million, two hundred sixty-one thousand, two hundred ninety-one".