38946418317 has 12 divisors (see below), whose sum is σ = 56260452924. Its totient is φ = 25962194880.

The previous prime is 38946418309. The next prime is 38946418333. The reversal of 38946418317 is 71381464983.

It can be written as a sum of positive squares in 2 ways, for example, as 30382581636 + 8563836681 = 174306^2 + 92541^2 .

It is not a de Polignac number, because 38946418317 - 2³ = 38946418309 is a prime.

It is a super-2 number, since 2×38946418317² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38946410317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50728 + ... + 283665.

It is an arithmetic number, because the mean of its divisors is an integer number (4688371077).

Almost surely, 2^38946418317 is an apocalyptic number.

It is an amenable number.

38946418317 is a deficient number, since it is larger than the sum of its proper divisors (17314034607).

38946418317 is a wasteful number, since it uses less digits than its factorization.

38946418317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347340 (or 347337 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 38946418317 in words is "thirty-eight billion, nine hundred forty-six million, four hundred eighteen thousand, three hundred seventeen".