420513499999 has 2 divisors, whose sum is σ = 420513500000. Its totient is φ = 420513499998.

The previous prime is 420513499969. The next prime is 420513500027. The reversal of 420513499999 is 999994315024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420513499999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420513499999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420513499909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210256749999 + 210256750000.

It is an arithmetic number, because the mean of its divisors is an integer number (210256750000).

Almost surely, 2^420513499999 is an apocalyptic number.

420513499999 is a deficient number, since it is larger than the sum of its proper divisors (1).

420513499999 is an equidigital number, since it uses as much as digits as its factorization.

420513499999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28343520, while the sum is 64.

The spelling of 420513499999 in words is "four hundred twenty billion, five hundred thirteen million, four hundred ninety-nine thousand, nine hundred ninety-nine".