438769748399 has 2 divisors, whose sum is σ = 438769748400. Its totient is φ = 438769748398.

The previous prime is 438769748371. The next prime is 438769748401. The reversal of 438769748399 is 993847967834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438769748399 - 2¹⁶ = 438769682863 is a prime.

It is a super-2 number, since 2×438769748399² (a number of 24 digits) contains 22 as substring.

Together with 438769748401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438769748359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219384874199 + 219384874200.

It is an arithmetic number, because the mean of its divisors is an integer number (219384874200).

Almost surely, 2^438769748399 is an apocalyptic number.

438769748399 is a deficient number, since it is larger than the sum of its proper divisors (1).

438769748399 is an equidigital number, since it uses as much as digits as its factorization.

438769748399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975228416, while the sum is 77.

The spelling of 438769748399 in words is "four hundred thirty-eight billion, seven hundred sixty-nine million, seven hundred forty-eight thousand, three hundred ninety-nine".