38426803913 has 2 divisors, whose sum is σ = 38426803914. Its totient is φ = 38426803912.

The previous prime is 38426803901. The next prime is 38426803949. The reversal of 38426803913 is 31930862483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38168655424 + 258148489 = 195368^2 + 16067^2 .

It is a cyclic number.

It is not a de Polignac number, because 38426803913 - 2³² = 34131836617 is a prime.

It is a super-2 number, since 2×38426803913² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38426803993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19213401956 + 19213401957.

It is an arithmetic number, because the mean of its divisors is an integer number (19213401957).

Almost surely, 2^38426803913 is an apocalyptic number.

It is an amenable number.

38426803913 is a deficient number, since it is larger than the sum of its proper divisors (1).

38426803913 is an equidigital number, since it uses as much as digits as its factorization.

38426803913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 38426803913 in words is "thirty-eight billion, four hundred twenty-six million, eight hundred three thousand, nine hundred thirteen".