38426803949 has 2 divisors, whose sum is σ = 38426803950. Its totient is φ = 38426803948.

The previous prime is 38426803913. The next prime is 38426803957. The reversal of 38426803949 is 94930862483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38227288324 + 199515625 = 195518^2 + 14125^2 .

It is a cyclic number.

It is not a de Polignac number, because 38426803949 - 2⁸ = 38426803693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38426803894 and 38426803903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38426803969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19213401974 + 19213401975.

It is an arithmetic number, because the mean of its divisors is an integer number (19213401975).

Almost surely, 2^38426803949 is an apocalyptic number.

It is an amenable number.

38426803949 is a deficient number, since it is larger than the sum of its proper divisors (1).

38426803949 is an equidigital number, since it uses as much as digits as its factorization.

38426803949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 56.

The spelling of 38426803949 in words is "thirty-eight billion, four hundred twenty-six million, eight hundred three thousand, nine hundred forty-nine".