420251039999 has 16 divisors (see below), whose sum is σ = 484497019968. Its totient is φ = 357069952512.

The previous prime is 420251039977. The next prime is 420251040007. The reversal of 420251039999 is 999930152024.

It is a happy number.

It is not a de Polignac number, because 420251039999 - 2¹⁶ = 420250974463 is a prime.

It is a super-2 number, since 2×420251039999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420251039999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420251039969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106772 + ... + 922985.

It is an arithmetic number, because the mean of its divisors is an integer number (30281063748).

Almost surely, 2^420251039999 is an apocalyptic number.

420251039999 is a deficient number, since it is larger than the sum of its proper divisors (64245979969).

420251039999 is a wasteful number, since it uses less digits than its factorization.

420251039999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030274.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 420251039999 in words is "four hundred twenty billion, two hundred fifty-one million, thirty-nine thousand, nine hundred ninety-nine".