38353358881 has 2 divisors, whose sum is σ = 38353358882. Its totient is φ = 38353358880.

The previous prime is 38353358873. The next prime is 38353358887. The reversal of 38353358881 is 18885335383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37320057856 + 1033301025 = 193184^2 + 32145^2 .

It is a cyclic number.

It is not a de Polignac number, because 38353358881 - 2³ = 38353358873 is a prime.

It is a super-2 number, since 2×38353358881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38353358887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19176679440 + 19176679441.

It is an arithmetic number, because the mean of its divisors is an integer number (19176679441).

Almost surely, 2^38353358881 is an apocalyptic number.

It is an amenable number.

38353358881 is a deficient number, since it is larger than the sum of its proper divisors (1).

38353358881 is an equidigital number, since it uses as much as digits as its factorization.

38353358881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 55.

The spelling of 38353358881 in words is "thirty-eight billion, three hundred fifty-three million, three hundred fifty-eight thousand, eight hundred eighty-one".