400848445973 has 2 divisors, whose sum is σ = 400848445974. Its totient is φ = 400848445972.

The previous prime is 400848445937. The next prime is 400848445979. The reversal of 400848445973 is 379544848004.

It is a happy number.

Together with previous prime (400848445937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389498313604 + 11350132369 = 624098^2 + 106537^2 .

It is a cyclic number.

It is not a de Polignac number, because 400848445973 - 2⁶ = 400848445909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400848445979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200424222986 + 200424222987.

It is an arithmetic number, because the mean of its divisors is an integer number (200424222987).

Almost surely, 2^400848445973 is an apocalyptic number.

It is an amenable number.

400848445973 is a deficient number, since it is larger than the sum of its proper divisors (1).

400848445973 is an equidigital number, since it uses as much as digits as its factorization.

400848445973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 400848445973 in words is "four hundred billion, eight hundred forty-eight million, four hundred forty-five thousand, nine hundred seventy-three".