421753583753 has 2 divisors, whose sum is σ = 421753583754. Its totient is φ = 421753583752.

The previous prime is 421753583747. The next prime is 421753583809. The reversal of 421753583753 is 357385357124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339110558224 + 82643025529 = 582332^2 + 287477^2 .

It is a cyclic number.

It is not a de Polignac number, because 421753583753 - 2⁶ = 421753583689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421753583695 and 421753583704.

It is not a weakly prime, because it can be changed into another prime (421753583723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210876791876 + 210876791877.

It is an arithmetic number, because the mean of its divisors is an integer number (210876791877).

Almost surely, 2^421753583753 is an apocalyptic number.

It is an amenable number.

421753583753 is a deficient number, since it is larger than the sum of its proper divisors (1).

421753583753 is an equidigital number, since it uses as much as digits as its factorization.

421753583753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584000, while the sum is 53.

The spelling of 421753583753 in words is "four hundred twenty-one billion, seven hundred fifty-three million, five hundred eighty-three thousand, seven hundred fifty-three".