38556660849 has 16 divisors (see below), whose sum is σ = 58790172672. Its totient is φ = 22018440528.

The previous prime is 38556660847. The next prime is 38556660887. The reversal of 38556660849 is 94806665583.

It is a happy number.

It is not a de Polignac number, because 38556660849 - 2¹ = 38556660847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38556660792 and 38556660801.

It is not an unprimeable number, because it can be changed into a prime (38556660847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546679 + ... + 613164.

It is an arithmetic number, because the mean of its divisors is an integer number (3674385792).

Almost surely, 2^38556660849 is an apocalyptic number.

It is an amenable number.

38556660849 is a deficient number, since it is larger than the sum of its proper divisors (20233511823).

38556660849 is a wasteful number, since it uses less digits than its factorization.

38556660849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161436.

The product of its (nonzero) digits is 37324800, while the sum is 60.

The spelling of 38556660849 in words is "thirty-eight billion, five hundred fifty-six million, six hundred sixty thousand, eight hundred forty-nine".