38279386249 has 4 divisors (see below), whose sum is σ = 41223954436. Its totient is φ = 35334818064.

The previous prime is 38279386231. The next prime is 38279386283. The reversal of 38279386249 is 94268397283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94268397283 = 5659 ⋅16658137.

It can be written as a sum of positive squares in 2 ways, for example, as 14512539024 + 23766847225 = 120468^2 + 154165^2 .

It is not a de Polignac number, because 38279386249 - 2⁷ = 38279386121 is a prime.

It is a super-2 number, since 2×38279386249² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38279386349) 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, 1472284074 + ... + 1472284099.

It is an arithmetic number, because the mean of its divisors is an integer number (10305988609).

Almost surely, 2^38279386249 is an apocalyptic number.

It is an amenable number.

38279386249 is a deficient number, since it is larger than the sum of its proper divisors (2944568187).

38279386249 is a wasteful number, since it uses less digits than its factorization.

38279386249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944568186.

The product of its digits is 31352832, while the sum is 61.

The spelling of 38279386249 in words is "thirty-eight billion, two hundred seventy-nine million, three hundred eighty-six thousand, two hundred forty-nine".