3865724996340 has 72 divisors (see below), whose sum is σ = 11498191078752. Its totient is φ = 970221171200.

The previous prime is 3865724996339. The next prime is 3865724996377. The reversal of 3865724996340 is 436994275683.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111451086 + ... + 111485765.

It is an arithmetic number, because the mean of its divisors is an integer number (159697098316).

Almost surely, 2^{3865724996340} is an apocalyptic number.

3865724996340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3865724996340 is an abundant number, since it is smaller than the sum of its proper divisors (7632466082412).

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

3865724996340 is a wasteful number, since it uses less digits than its factorization.

3865724996340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222936897 (or 222936878 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 66.

The spelling of 3865724996340 in words is "three trillion, eight hundred sixty-five billion, seven hundred twenty-four million, nine hundred ninety-six thousand, three hundred forty".