3938879037780 has 72 divisors (see below), whose sum is σ = 11948773697952. Its totient is φ = 1050293843136.

The previous prime is 3938879037761. The next prime is 3938879037781. The reversal of 3938879037780 is 877309788393.

3938879037780 is a `hidden beast` number, since 3 + 93 + 8 + 8 + 7 + 90 + 377 + 80 = 666.

3938879037780 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-3 number, since 3×3938879037780³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3938879037699 and 3938879037708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938879037781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1819839 + ... + 3345081.

Almost surely, 2^{3938879037780} is an apocalyptic number.

3938879037780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3938879037780 is an abundant number, since it is smaller than the sum of its proper divisors (8009894660172).

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

3938879037780 is a wasteful number, since it uses less digits than its factorization.

3938879037780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539605 (or 1539600 counting only the distinct ones).

The product of its (nonzero) digits is 384072192, while the sum is 72.

The spelling of 3938879037780 in words is "three trillion, nine hundred thirty-eight billion, eight hundred seventy-nine million, thirty-seven thousand, seven hundred eighty".