420545496899 has 12 divisors (see below), whose sum is σ = 486581569320. Its totient is φ = 362192292000.

The previous prime is 420545496893. The next prime is 420545496947. The reversal of 420545496899 is 998694545024.

It is not a de Polignac number, because 420545496899 - 2²⁰ = 420544448323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420545496893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91460402 + ... + 91464999.

It is an arithmetic number, because the mean of its divisors is an integer number (40548464110).

Almost surely, 2^420545496899 is an apocalyptic number.

420545496899 is a deficient number, since it is larger than the sum of its proper divisors (66036072421).

420545496899 is a wasteful number, since it uses less digits than its factorization.

420545496899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182925442 (or 182925431 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 420545496899 in words is "four hundred twenty billion, five hundred forty-five million, four hundred ninety-six thousand, eight hundred ninety-nine".