938919473365249 has 4 divisors (see below), whose sum is σ = 938935238481364. Its totient is φ = 938903708249136.

The previous prime is 938919473365229. The next prime is 938919473365267. The reversal of 938919473365249 is 942563374919839.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87388712365249 + 851530761000000 = 9348193^2 + 29181000^2 .

It is a cyclic number.

It is not a de Polignac number, because 938919473365249 - 2³³ = 938910883430657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938919473365229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7882468722 + ... + 7882587835.

It is an arithmetic number, because the mean of its divisors is an integer number (234733809620341).

Almost surely, 2^{938919473365249} is an apocalyptic number.

It is an amenable number.

938919473365249 is a deficient number, since it is larger than the sum of its proper divisors (15765116115).

938919473365249 is a wasteful number, since it uses less digits than its factorization.

938919473365249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765116114.

The product of its digits is 9523422720, while the sum is 82.

The spelling of 938919473365249 in words is "nine hundred thirty-eight trillion, nine hundred nineteen billion, four hundred seventy-three million, three hundred sixty-five thousand, two hundred forty-nine".