38291622247 has 2 divisors, whose sum is σ = 38291622248. Its totient is φ = 38291622246.

The previous prime is 38291622227. The next prime is 38291622319. The reversal of 38291622247 is 74222619283.

It is a weak prime.

It is an emirp because it is prime and its reverse (74222619283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38291622247 - 2³¹ = 36144138599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38291622197 and 38291622206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38291622227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19145811123 + 19145811124.

It is an arithmetic number, because the mean of its divisors is an integer number (19145811124).

Almost surely, 2^38291622247 is an apocalyptic number.

38291622247 is a deficient number, since it is larger than the sum of its proper divisors (1).

38291622247 is an equidigital number, since it uses as much as digits as its factorization.

38291622247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The spelling of 38291622247 in words is "thirty-eight billion, two hundred ninety-one million, six hundred twenty-two thousand, two hundred forty-seven".