400848447887 has 2 divisors, whose sum is σ = 400848447888. Its totient is φ = 400848447886.

The previous prime is 400848447841. The next prime is 400848448037. The reversal of 400848447887 is 788744848004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400848447887 - 2³⁰ = 399774706063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400848449887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200424223943 + 200424223944.

It is an arithmetic number, because the mean of its divisors is an integer number (200424223944).

Almost surely, 2^400848447887 is an apocalyptic number.

400848447887 is a deficient number, since it is larger than the sum of its proper divisors (1).

400848447887 is an equidigital number, since it uses as much as digits as its factorization.

400848447887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51380224, while the sum is 62.

The spelling of 400848447887 in words is "four hundred billion, eight hundred forty-eight million, four hundred forty-seven thousand, eight hundred eighty-seven".