38519646009 has 16 divisors (see below), whose sum is σ = 55313788992. Its totient is φ = 23702885568.

The previous prime is 38519645971. The next prime is 38519646017. The reversal of 38519646009 is 90064691583.

It is not a de Polignac number, because 38519646009 - 2⁷ = 38519645881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38519646019) 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, 1128339 + ... + 1161975.

It is an arithmetic number, because the mean of its divisors is an integer number (3457111812).

Almost surely, 2^38519646009 is an apocalyptic number.

38519646009 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38519646009 is a deficient number, since it is larger than the sum of its proper divisors (16794142983).

38519646009 is a wasteful number, since it uses less digits than its factorization.

38519646009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63016.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 38519646009 in words is "thirty-eight billion, five hundred nineteen million, six hundred forty-six thousand, nine".