38453330857 has 2 divisors, whose sum is σ = 38453330858. Its totient is φ = 38453330856.

The previous prime is 38453330849. The next prime is 38453330921. The reversal of 38453330857 is 75803335483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36670718016 + 1782612841 = 191496^2 + 42221^2 .

It is a cyclic number.

It is not a de Polignac number, because 38453330857 - 2³ = 38453330849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38453330857.

It is not a weakly prime, because it can be changed into another prime (38453360857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19226665428 + 19226665429.

It is an arithmetic number, because the mean of its divisors is an integer number (19226665429).

Almost surely, 2^38453330857 is an apocalyptic number.

It is an amenable number.

38453330857 is a deficient number, since it is larger than the sum of its proper divisors (1).

38453330857 is an equidigital number, since it uses as much as digits as its factorization.

38453330857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 38453330857 in words is "thirty-eight billion, four hundred fifty-three million, three hundred thirty thousand, eight hundred fifty-seven".