405400146479 has 2 divisors, whose sum is σ = 405400146480. Its totient is φ = 405400146478.

The previous prime is 405400146433. The next prime is 405400146499. The reversal of 405400146479 is 974641004504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405400146479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405400146499) 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, 202700073239 + 202700073240.

It is an arithmetic number, because the mean of its divisors is an integer number (202700073240).

Almost surely, 2^405400146479 is an apocalyptic number.

405400146479 is a deficient number, since it is larger than the sum of its proper divisors (1).

405400146479 is an equidigital number, since it uses as much as digits as its factorization.

405400146479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 405400146479 in words is "four hundred five billion, four hundred million, one hundred forty-six thousand, four hundred seventy-nine".