38699775889 has 4 divisors (see below), whose sum is σ = 39523175424. Its totient is φ = 37876376356.

The previous prime is 38699775869. The next prime is 38699775923. The reversal of 38699775889 is 98857799683.

38699775889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38699775889 - 2²¹ = 38697678737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38699775859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411699697 + ... + 411699790.

It is an arithmetic number, because the mean of its divisors is an integer number (9880793856).

Almost surely, 2^38699775889 is an apocalyptic number.

It is an amenable number.

38699775889 is a deficient number, since it is larger than the sum of its proper divisors (823399535).

38699775889 is an equidigital number, since it uses as much as digits as its factorization.

38699775889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823399534.

The product of its digits is 1646023680, while the sum is 79.

The spelling of 38699775889 in words is "thirty-eight billion, six hundred ninety-nine million, seven hundred seventy-five thousand, eight hundred eighty-nine".