4749344131421 has 2 divisors, whose sum is σ = 4749344131422. Its totient is φ = 4749344131420.

The previous prime is 4749344131309. The next prime is 4749344131429. The reversal of 4749344131421 is 1241314439474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3372875498521 + 1376468632900 = 1836539^2 + 1173230^2 .

It is a cyclic number.

It is not a de Polignac number, because 4749344131421 - 2¹⁴ = 4749344115037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4749344131429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2374672065710 + 2374672065711.

It is an arithmetic number, because the mean of its divisors is an integer number (2374672065711).

Almost surely, 2^{4749344131421} is an apocalyptic number.

It is an amenable number.

4749344131421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4749344131421 is an equidigital number, since it uses as much as digits as its factorization.

4749344131421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 47.

The spelling of 4749344131421 in words is "four trillion, seven hundred forty-nine billion, three hundred forty-four million, one hundred thirty-one thousand, four hundred twenty-one".