420015455899 has 4 divisors (see below), whose sum is σ = 452324337136. Its totient is φ = 387706574664.

The previous prime is 420015455887. The next prime is 420015455911. The reversal of 420015455899 is 998554510024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (420015455887) and next prime (420015455911).

It is a cyclic number.

It is not a de Polignac number, because 420015455899 - 2³⁷ = 282576502427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420015455879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16154440599 + ... + 16154440624.

It is an arithmetic number, because the mean of its divisors is an integer number (113081084284).

Almost surely, 2^420015455899 is an apocalyptic number.

420015455899 is a deficient number, since it is larger than the sum of its proper divisors (32308881237).

420015455899 is a wasteful number, since it uses less digits than its factorization.

420015455899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32308881236.

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 420015455899 in words is "four hundred twenty billion, fifteen million, four hundred fifty-five thousand, eight hundred ninety-nine".