38556335497 has 2 divisors, whose sum is σ = 38556335498. Its totient is φ = 38556335496.

The previous prime is 38556335471. The next prime is 38556335527. The reversal of 38556335497 is 79453365583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20442136576 + 18114198921 = 142976^2 + 134589^2 .

It is a cyclic number.

It is not a de Polignac number, because 38556335497 - 2⁷ = 38556335369 is a prime.

It is not a weakly prime, because it can be changed into another prime (38556305497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19278167748 + 19278167749.

It is an arithmetic number, because the mean of its divisors is an integer number (19278167749).

Almost surely, 2^38556335497 is an apocalyptic number.

It is an amenable number.

38556335497 is a deficient number, since it is larger than the sum of its proper divisors (1).

38556335497 is an equidigital number, since it uses as much as digits as its factorization.

38556335497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824000, while the sum is 58.

The spelling of 38556335497 in words is "thirty-eight billion, five hundred fifty-six million, three hundred thirty-five thousand, four hundred ninety-seven".