400374040007 has 2 divisors, whose sum is σ = 400374040008. Its totient is φ = 400374040006.

The previous prime is 400374039983. The next prime is 400374040021. The reversal of 400374040007 is 700040473004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400374040007 - 2²⁸ = 400105604551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400374040607) 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 as a sum of consecutive naturals, namely, 200187020003 + 200187020004.

It is an arithmetic number, because the mean of its divisors is an integer number (200187020004).

Almost surely, 2^400374040007 is an apocalyptic number.

400374040007 is a deficient number, since it is larger than the sum of its proper divisors (1).

400374040007 is an equidigital number, since it uses as much as digits as its factorization.

400374040007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

The spelling of 400374040007 in words is "four hundred billion, three hundred seventy-four million, forty thousand, seven".