38081977809 has 16 divisors (see below), whose sum is σ = 52735242240. Its totient is φ = 24426660560.

The previous prime is 38081977751. The next prime is 38081977847. The reversal of 38081977809 is 90877918083.

It is a cyclic number.

It is not a de Polignac number, because 38081977809 - 2⁸ = 38081977553 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38081975809) 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, 2280537 + ... + 2297174.

It is an arithmetic number, because the mean of its divisors is an integer number (3295952640).

Almost surely, 2^38081977809 is an apocalyptic number.

It is an amenable number.

38081977809 is a deficient number, since it is larger than the sum of its proper divisors (14653264431).

38081977809 is a wasteful number, since it uses less digits than its factorization.

38081977809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577820.

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 38081977809 in words is "thirty-eight billion, eighty-one million, nine hundred seventy-seven thousand, eight hundred nine".