4021718712 has 64 divisors (see below), whose sum is σ = 10976342400. Its totient is φ = 1217811840.

The previous prime is 4021718689. The next prime is 4021718719. The reversal of 4021718712 is 2178171204.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021718719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416839 + ... + 426377.

It is an arithmetic number, because the mean of its divisors is an integer number (171505350).

Almost surely, 2^4021718712 is an apocalyptic number.

It is an amenable number.

4021718712 is an abundant number, since it is smaller than the sum of its proper divisors (6954623688).

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

4021718712 is a wasteful number, since it uses less digits than its factorization.

4021718712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 11152 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 4021718712 is about 63417.0222574350. The cubic root of 4021718712 is about 1590.2688932522.

Adding to 4021718712 its reverse (2178171204), we get a palindrome (6199889916).

The spelling of 4021718712 in words is "four billion, twenty-one million, seven hundred eighteen thousand, seven hundred twelve".