38458989648 has 40 divisors (see below), whose sum is σ = 110391545600. Its totient is φ = 12819663072.

The previous prime is 38458989629. The next prime is 38458989649. The reversal of 38458989648 is 84698985483.

38458989648 is a `hidden beast` number, since 38 + 4 + 589 + 8 + 9 + 6 + 4 + 8 = 666.

It is a super-3 number, since 3×38458989648³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38458989649) 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, 44512288 + ... + 44513151.

It is an arithmetic number, because the mean of its divisors is an integer number (2759788640).

Almost surely, 2^38458989648 is an apocalyptic number.

It is an amenable number.

38458989648 is an abundant number, since it is smaller than the sum of its proper divisors (71932555952).

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

38458989648 is a wasteful number, since it uses less digits than its factorization.

38458989648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89025456 (or 89025444 counting only the distinct ones).

The product of its digits is 477757440, while the sum is 72.

The spelling of 38458989648 in words is "thirty-eight billion, four hundred fifty-eight million, nine hundred eighty-nine thousand, six hundred forty-eight".