420007500901 has 2 divisors, whose sum is σ = 420007500902. Its totient is φ = 420007500900.

The previous prime is 420007500889. The next prime is 420007500919. The reversal of 420007500901 is 109005700024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395974440225 + 24033060676 = 629265^2 + 155026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420007500901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420007500901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420007500001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210003750450 + 210003750451.

It is an arithmetic number, because the mean of its divisors is an integer number (210003750451).

Almost surely, 2^420007500901 is an apocalyptic number.

It is an amenable number.

420007500901 is a deficient number, since it is larger than the sum of its proper divisors (1).

420007500901 is an equidigital number, since it uses as much as digits as its factorization.

420007500901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 420007500901 in words is "four hundred twenty billion, seven million, five hundred thousand, nine hundred one".