4488040426421 has 2 divisors, whose sum is σ = 4488040426422. Its totient is φ = 4488040426420.

The previous prime is 4488040426403. The next prime is 4488040426453. The reversal of 4488040426421 is 1246240408844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4441615260196 + 46425166225 = 2107514^2 + 215465^2 .

It is a cyclic number.

It is not a de Polignac number, because 4488040426421 - 2¹⁸ = 4488040164277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4488040426921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2244020213210 + 2244020213211.

It is an arithmetic number, because the mean of its divisors is an integer number (2244020213211).

Almost surely, 2^{4488040426421} is an apocalyptic number.

It is an amenable number.

4488040426421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4488040426421 is an equidigital number, since it uses as much as digits as its factorization.

4488040426421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1572864, while the sum is 47.

The spelling of 4488040426421 in words is "four trillion, four hundred eighty-eight billion, forty million, four hundred twenty-six thousand, four hundred twenty-one".