4178701057681 has 4 divisors (see below), whose sum is σ = 4200352358692. Its totient is φ = 4157049756672.

The previous prime is 4178701057649. The next prime is 4178701057693. The reversal of 4178701057681 is 1867501078714.

4178701057681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2756845140625 + 1421855917056 = 1660375^2 + 1192416^2 .

It is a cyclic number.

It is not a de Polignac number, because 4178701057681 - 2⁵ = 4178701057649 is a prime.

It is a super-2 number, since 2×4178701057681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4178701057481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10825650216 + ... + 10825650601.

It is an arithmetic number, because the mean of its divisors is an integer number (1050088089673).

Almost surely, 2^{4178701057681} is an apocalyptic number.

It is an amenable number.

4178701057681 is a deficient number, since it is larger than the sum of its proper divisors (21651301011).

4178701057681 is a wasteful number, since it uses less digits than its factorization.

4178701057681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21651301010.

The product of its (nonzero) digits is 2634240, while the sum is 55.

The spelling of 4178701057681 in words is "four trillion, one hundred seventy-eight billion, seven hundred one million, fifty-seven thousand, six hundred eighty-one".