420100742497 has 2 divisors, whose sum is σ = 420100742498. Its totient is φ = 420100742496.

The previous prime is 420100742431. The next prime is 420100742513. The reversal of 420100742497 is 794247001024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414683193681 + 5417548816 = 643959^2 + 73604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420100742497 is a prime.

It is not a weakly prime, because it can be changed into another prime (420100742597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210050371248 + 210050371249.

It is an arithmetic number, because the mean of its divisors is an integer number (210050371249).

Almost surely, 2^420100742497 is an apocalyptic number.

It is an amenable number.

420100742497 is a deficient number, since it is larger than the sum of its proper divisors (1).

420100742497 is an equidigital number, since it uses as much as digits as its factorization.

420100742497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 420100742497 in words is "four hundred twenty billion, one hundred million, seven hundred forty-two thousand, four hundred ninety-seven".