38552186749 has 2 divisors, whose sum is σ = 38552186750. Its totient is φ = 38552186748.

The previous prime is 38552186681. The next prime is 38552186773. The reversal of 38552186749 is 94768125583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28614090649 + 9938096100 = 169157^2 + 99690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38552186749 is a prime.

It is a super-2 number, since 2×38552186749² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38552186693 and 38552186702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38552186789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19276093374 + 19276093375.

It is an arithmetic number, because the mean of its divisors is an integer number (19276093375).

Almost surely, 2^38552186749 is an apocalyptic number.

It is an amenable number.

38552186749 is a deficient number, since it is larger than the sum of its proper divisors (1).

38552186749 is an equidigital number, since it uses as much as digits as its factorization.

38552186749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 58.

The spelling of 38552186749 in words is "thirty-eight billion, five hundred fifty-two million, one hundred eighty-six thousand, seven hundred forty-nine".