420053238787 has 48 divisors (see below), whose sum is σ = 541351876608. Its totient is φ = 318779435520.

The previous prime is 420053238733. The next prime is 420053238793. The reversal of 420053238787 is 787832350024.

It is a happy number.

It is not a de Polignac number, because 420053238787 - 2¹¹ = 420053236739 is a prime.

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 420053238787.

It is not an unprimeable number, because it can be changed into a prime (420053238707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4093368 + ... + 4194730.

It is an arithmetic number, because the mean of its divisors is an integer number (11278164096).

Almost surely, 2^420053238787 is an apocalyptic number.

420053238787 is a deficient number, since it is larger than the sum of its proper divisors (121298637821).

420053238787 is a wasteful number, since it uses less digits than its factorization.

420053238787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101540 (or 101527 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 420053238787 in words is "four hundred twenty billion, fifty-three million, two hundred thirty-eight thousand, seven hundred eighty-seven".