938630861540 has 24 divisors (see below), whose sum is σ = 1991445687672. Its totient is φ = 371581701120.

The previous prime is 938630861507. The next prime is 938630861551. The reversal of 938630861540 is 45168036839.

It can be written as a sum of positive squares in 4 ways, for example, as 44429894656 + 894200966884 = 210784^2 + 945622^2 .

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, 241913231 + ... + 241917110.

It is an arithmetic number, because the mean of its divisors is an integer number (82976903653).

Almost surely, 2^938630861540 is an apocalyptic number.

It is an amenable number.

938630861540 is an abundant number, since it is smaller than the sum of its proper divisors (1052814826132).

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

938630861540 is a wasteful number, since it uses less digits than its factorization.

938630861540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483830447 (or 483830445 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 938630861540 in words is "nine hundred thirty-eight billion, six hundred thirty million, eight hundred sixty-one thousand, five hundred forty".