420266648877 has 32 divisors (see below), whose sum is σ = 598346072064. Its totient is φ = 261470764800.

The previous prime is 420266648807. The next prime is 420266648897. The reversal of 420266648877 is 778846662024.

It is not a de Polignac number, because 420266648877 - 2¹¹ = 420266646829 is a prime.

It is a super-2 number, since 2×420266648877² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420266648877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420266648807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2960088 + ... + 3098814.

It is an arithmetic number, because the mean of its divisors is an integer number (18698314752).

Almost surely, 2^420266648877 is an apocalyptic number.

It is an amenable number.

420266648877 is a deficient number, since it is larger than the sum of its proper divisors (178079423187).

420266648877 is a wasteful number, since it uses less digits than its factorization.

420266648877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139249.

The product of its (nonzero) digits is 43352064, while the sum is 60.

The spelling of 420266648877 in words is "four hundred twenty billion, two hundred sixty-six million, six hundred forty-eight thousand, eight hundred seventy-seven".