38923501847 has 2 divisors, whose sum is σ = 38923501848. Its totient is φ = 38923501846.

The previous prime is 38923501807. The next prime is 38923501861. The reversal of 38923501847 is 74810532983.

It is a strong prime.

It is an emirp because it is prime and its reverse (74810532983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38923501847 - 2¹⁰ = 38923500823 is a prime.

It is a super-2 number, since 2×38923501847² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38923501795 and 38923501804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38923501807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19461750923 + 19461750924.

It is an arithmetic number, because the mean of its divisors is an integer number (19461750924).

Almost surely, 2^38923501847 is an apocalyptic number.

38923501847 is a deficient number, since it is larger than the sum of its proper divisors (1).

38923501847 is an equidigital number, since it uses as much as digits as its factorization.

38923501847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 38923501847 in words is "thirty-eight billion, nine hundred twenty-three million, five hundred one thousand, eight hundred forty-seven".