400865801207 has 2 divisors, whose sum is σ = 400865801208. Its totient is φ = 400865801206.

The previous prime is 400865801143. The next prime is 400865801243. The reversal of 400865801207 is 702108568004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400865801207 - 2⁶ = 400865801143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400865800207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200432900603 + 200432900604.

It is an arithmetic number, because the mean of its divisors is an integer number (200432900604).

Almost surely, 2^400865801207 is an apocalyptic number.

400865801207 is a deficient number, since it is larger than the sum of its proper divisors (1).

400865801207 is an equidigital number, since it uses as much as digits as its factorization.

400865801207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 400865801207 in words is "four hundred billion, eight hundred sixty-five million, eight hundred one thousand, two hundred seven".