38641856047 has 2 divisors, whose sum is σ = 38641856048. Its totient is φ = 38641856046.

The previous prime is 38641856027. The next prime is 38641856203. The reversal of 38641856047 is 74065814683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38641856047 - 2¹⁹ = 38641331759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38641855985 and 38641856003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38641856027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19320928023 + 19320928024.

It is an arithmetic number, because the mean of its divisors is an integer number (19320928024).

Almost surely, 2^38641856047 is an apocalyptic number.

38641856047 is a deficient number, since it is larger than the sum of its proper divisors (1).

38641856047 is an equidigital number, since it uses as much as digits as its factorization.

38641856047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 38641856047 in words is "thirty-eight billion, six hundred forty-one million, eight hundred fifty-six thousand, forty-seven".