6800640031 has 2 divisors, whose sum is σ = 6800640032. Its totient is φ = 6800640030.

The previous prime is 6800639927. The next prime is 6800640059. The reversal of 6800640031 is 1300460086.

It is an a-pointer prime, because the next prime (6800640059) can be obtained adding 6800640031 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6800640031 - 2¹⁵ = 6800607263 is a prime.

It is a super-2 number, since 2×6800640031² = 92497409662479361922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6800646031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400320015 + 3400320016.

It is an arithmetic number, because the mean of its divisors is an integer number (3400320016).

Almost surely, 2^6800640031 is an apocalyptic number.

6800640031 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800640031 is an equidigital number, since it uses as much as digits as its factorization.

6800640031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6800640031 is about 82465.9931790068. The cubic root of 6800640031 is about 1894.5959118244.

The spelling of 6800640031 in words is "six billion, eight hundred million, six hundred forty thousand, thirty-one".