38909019028 has 12 divisors (see below), whose sum is σ = 74280854592. Its totient is φ = 17685917720.

The previous prime is 38909019013. The next prime is 38909019029. The reversal of 38909019028 is 82091090983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38909019029) 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, 442147900 + ... + 442147987.

It is an arithmetic number, because the mean of its divisors is an integer number (6190071216).

Almost surely, 2^38909019028 is an apocalyptic number.

It is an amenable number.

38909019028 is a deficient number, since it is larger than the sum of its proper divisors (35371835564).

38909019028 is a wasteful number, since it uses less digits than its factorization.

38909019028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884295902 (or 884295900 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 38909019028 in words is "thirty-eight billion, nine hundred nine million, nineteen thousand, twenty-eight".