421753274385 has 32 divisors (see below), whose sum is σ = 696710876160. Its totient is φ = 217636070400.

The previous prime is 421753274359. The next prime is 421753274413. The reversal of 421753274385 is 583472357124.

It is not a de Polignac number, because 421753274385 - 2¹⁵ = 421753241617 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2335125 + ... + 2509245.

It is an arithmetic number, because the mean of its divisors is an integer number (21772214880).

Almost surely, 2^421753274385 is an apocalyptic number.

It is an amenable number.

421753274385 is a deficient number, since it is larger than the sum of its proper divisors (274957601775).

421753274385 is a wasteful number, since it uses less digits than its factorization.

421753274385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179369.

The product of its digits is 5644800, while the sum is 51.

The spelling of 421753274385 in words is "four hundred twenty-one billion, seven hundred fifty-three million, two hundred seventy-four thousand, three hundred eighty-five".