5401305681 has 8 divisors (see below), whose sum is σ = 7217297280. Its totient is φ = 3593092272.

The previous prime is 5401305661. The next prime is 5401305703. The reversal of 5401305681 is 1865031045.

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

It is not a de Polignac number, because 5401305681 - 2⁵ = 5401305649 is a prime.

It is a super-2 number, since 2×5401305681² = 58348206119205747522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5401305641) 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, 1942926 + ... + 1945703.

It is an arithmetic number, because the mean of its divisors is an integer number (902162160).

Almost surely, 2^5401305681 is an apocalyptic number.

It is an amenable number.

5401305681 is a deficient number, since it is larger than the sum of its proper divisors (1815991599).

5401305681 is a wasteful number, since it uses less digits than its factorization.

5401305681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889095.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 5401305681 is about 73493.5757804721. The cubic root of 5401305681 is about 1754.5520328069.

The spelling of 5401305681 in words is "five billion, four hundred one million, three hundred five thousand, six hundred eighty-one".