4084721537881 has 8 divisors (see below), whose sum is σ = 4299728022720. Its totient is φ = 3869717167152.

The previous prime is 4084721537873. The next prime is 4084721537893. The reversal of 4084721537881 is 1887351274804.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4084721537881 - 2³ = 4084721537873 is a prime.

It is a super-2 number, since 2×4084721537881² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4084721537851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4831116 + ... + 5613298.

It is an arithmetic number, because the mean of its divisors is an integer number (537466002840).

Almost surely, 2^{4084721537881} is an apocalyptic number.

It is an amenable number.

4084721537881 is a deficient number, since it is larger than the sum of its proper divisors (215006484839).

4084721537881 is a wasteful number, since it uses less digits than its factorization.

4084721537881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057055.

The product of its (nonzero) digits is 12042240, while the sum is 58.

The spelling of 4084721537881 in words is "four trillion, eighty-four billion, seven hundred twenty-one million, five hundred thirty-seven thousand, eight hundred eighty-one".