438050902447 has 2 divisors, whose sum is σ = 438050902448. Its totient is φ = 438050902446.

The previous prime is 438050902439. The next prime is 438050902537. The reversal of 438050902447 is 744209050834.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438050902447 - 2³ = 438050902439 is a prime.

It is a super-2 number, since 2×438050902447² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438050902397 and 438050902406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438050902147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219025451223 + 219025451224.

It is an arithmetic number, because the mean of its divisors is an integer number (219025451224).

Almost surely, 2^438050902447 is an apocalyptic number.

438050902447 is a deficient number, since it is larger than the sum of its proper divisors (1).

438050902447 is an equidigital number, since it uses as much as digits as its factorization.

438050902447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 438050902447 in words is "four hundred thirty-eight billion, fifty million, nine hundred two thousand, four hundred forty-seven".