38274406549 has 2 divisors, whose sum is σ = 38274406550. Its totient is φ = 38274406548.

The previous prime is 38274406529. The next prime is 38274406571. The reversal of 38274406549 is 94560447283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35065184049 + 3209222500 = 187257^2 + 56650^2 .

It is an emirp because it is prime and its reverse (94560447283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38274406549 - 2⁵ = 38274406517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38274406496 and 38274406505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38274406519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19137203274 + 19137203275.

It is an arithmetic number, because the mean of its divisors is an integer number (19137203275).

Almost surely, 2^38274406549 is an apocalyptic number.

It is an amenable number.

38274406549 is a deficient number, since it is larger than the sum of its proper divisors (1).

38274406549 is an equidigital number, since it uses as much as digits as its factorization.

38274406549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 38274406549 in words is "thirty-eight billion, two hundred seventy-four million, four hundred six thousand, five hundred forty-nine".