38974522117 has 2 divisors, whose sum is σ = 38974522118. Its totient is φ = 38974522116.

The previous prime is 38974522087. The next prime is 38974522121. The reversal of 38974522117 is 71122547983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36538704801 + 2435817316 = 191151^2 + 49354^2 .

It is a cyclic number.

It is not a de Polignac number, because 38974522117 - 2¹¹ = 38974520069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38974526117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19487261058 + 19487261059.

It is an arithmetic number, because the mean of its divisors is an integer number (19487261059).

Almost surely, 2^38974522117 is an apocalyptic number.

It is an amenable number.

38974522117 is a deficient number, since it is larger than the sum of its proper divisors (1).

38974522117 is an equidigital number, since it uses as much as digits as its factorization.

38974522117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 49.

The spelling of 38974522117 in words is "thirty-eight billion, nine hundred seventy-four million, five hundred twenty-two thousand, one hundred seventeen".