838758375503 has 2 divisors, whose sum is σ = 838758375504. Its totient is φ = 838758375502.

The previous prime is 838758375467. The next prime is 838758375509. The reversal of 838758375503 is 305573857838.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 838758375503 - 2¹⁰ = 838758374479 is a prime.

It is a super-2 number, since 2×838758375503² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838758375509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419379187751 + 419379187752.

It is an arithmetic number, because the mean of its divisors is an integer number (419379187752).

Almost surely, 2^838758375503 is an apocalyptic number.

838758375503 is a deficient number, since it is larger than the sum of its proper divisors (1).

838758375503 is an equidigital number, since it uses as much as digits as its factorization.

838758375503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672000, while the sum is 62.

The spelling of 838758375503 in words is "eight hundred thirty-eight billion, seven hundred fifty-eight million, three hundred seventy-five thousand, five hundred three".