38870046617 has 2 divisors, whose sum is σ = 38870046618. Its totient is φ = 38870046616.

The previous prime is 38870046587. The next prime is 38870046739. The reversal of 38870046617 is 71664007883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808200976 + 17061845641 = 147676^2 + 130621^2 .

It is a cyclic number.

It is not a de Polignac number, because 38870046617 - 2¹⁰ = 38870045593 is a prime.

It is not a weakly prime, because it can be changed into another prime (38870046217) 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, 19435023308 + 19435023309.

It is an arithmetic number, because the mean of its divisors is an integer number (19435023309).

Almost surely, 2^38870046617 is an apocalyptic number.

It is an amenable number.

38870046617 is a deficient number, since it is larger than the sum of its proper divisors (1).

38870046617 is an equidigital number, since it uses as much as digits as its factorization.

38870046617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 38870046617 in words is "thirty-eight billion, eight hundred seventy million, forty-six thousand, six hundred seventeen".