38643497148 has 24 divisors (see below), whose sum is σ = 90625871952. Its totient is φ = 12815778304.

The previous prime is 38643497141. The next prime is 38643497171. The reversal of 38643497148 is 84179434683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38643497141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8170965 + ... + 8175692.

It is an arithmetic number, because the mean of its divisors is an integer number (3776077998).

Almost surely, 2^38643497148 is an apocalyptic number.

It is an amenable number.

38643497148 is an abundant number, since it is smaller than the sum of its proper divisors (51982374804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38643497148 is a wasteful number, since it uses less digits than its factorization.

38643497148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16346861 (or 16346859 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 38643497148 in words is "thirty-eight billion, six hundred forty-three million, four hundred ninety-seven thousand, one hundred forty-eight".