400465780067 has 2 divisors, whose sum is σ = 400465780068. Its totient is φ = 400465780066.

The previous prime is 400465780049. The next prime is 400465780069. The reversal of 400465780067 is 760087564004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400465780067 - 2²⁶ = 400398671203 is a prime.

Together with 400465780069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400465780069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200232890033 + 200232890034.

It is an arithmetic number, because the mean of its divisors is an integer number (200232890034).

Almost surely, 2^400465780067 is an apocalyptic number.

400465780067 is a deficient number, since it is larger than the sum of its proper divisors (1).

400465780067 is an equidigital number, since it uses as much as digits as its factorization.

400465780067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 400465780067 in words is "four hundred billion, four hundred sixty-five million, seven hundred eighty thousand, sixty-seven".