9393940078540 has 24 divisors (see below), whose sum is σ = 19751244156000. Its totient is φ = 3753010318848.

The previous prime is 9393940078493. The next prime is 9393940078577. The reversal of 9393940078540 is 458700493939.

9393940078540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9393940078540² (a number of 27 digits) contains 22 as substring.

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, 285340165 + ... + 285373084.

It is an arithmetic number, because the mean of its divisors is an integer number (822968506500).

Almost surely, 2^{9393940078540} is an apocalyptic number.

It is an amenable number.

9393940078540 is an abundant number, since it is smaller than the sum of its proper divisors (10357304077460).

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

9393940078540 is a wasteful number, since it uses less digits than its factorization.

9393940078540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570714081 (or 570714079 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 9393940078540 in words is "nine trillion, three hundred ninety-three billion, nine hundred forty million, seventy-eight thousand, five hundred forty".