38993254684840 has 32 divisors (see below), whose sum is σ = 92352445308000. Its totient is φ = 14776391248704.

The previous prime is 38993254684801. The next prime is 38993254684919. The reversal of 38993254684840 is 4848645239983.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25653456270 + ... + 25653457789.

It is an arithmetic number, because the mean of its divisors is an integer number (2886013915875).

Almost surely, 2^{38993254684840} is an apocalyptic number.

It is an amenable number.

38993254684840 is an abundant number, since it is smaller than the sum of its proper divisors (53359190623160).

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

38993254684840 is a wasteful number, since it uses less digits than its factorization.

38993254684840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51306914089 (or 51306914085 counting only the distinct ones).

The product of its (nonzero) digits is 1433272320, while the sum is 73.

The spelling of 38993254684840 in words is "thirty-eight trillion, nine hundred ninety-three billion, two hundred fifty-four million, six hundred eighty-four thousand, eight hundred forty".