4015980040788 has 72 divisors (see below), whose sum is σ = 10506049324680. Its totient is φ = 1291946423040.

The previous prime is 4015980040747. The next prime is 4015980040789. The reversal of 4015980040788 is 8870400895104.

4015980040788 is a `hidden beast` number, since 4 + 0 + 1 + 598 + 0 + 0 + 40 + 7 + 8 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 262879747524 + 3753100293264 = 512718^2 + 1937292^2 .

It is a super-2 number, since 2×4015980040788² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015980040789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1622406 + ... + 3265602.

Almost surely, 2^{4015980040788} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4015980040788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5253024662340).

4015980040788 is an abundant number, since it is smaller than the sum of its proper divisors (6490069283892).

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

4015980040788 is a wasteful number, since it uses less digits than its factorization.

4015980040788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645577 (or 1645572 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 4015980040788 in words is "four trillion, fifteen billion, nine hundred eighty million, forty thousand, seven hundred eighty-eight".