6901063681 has 6 divisors (see below), whose sum is σ = 7214155970. Its totient is φ = 6601016928.

The previous prime is 6901063639. The next prime is 6901063703. The reversal of 6901063681 is 1863601096.

6901063681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6406401600 + 494662081 = 80040^2 + 22241^2 .

It is not a de Polignac number, because 6901063681 - 2¹³ = 6901055489 is a prime.

It is a super-2 number, since 2×6901063681² = 95249359858434539522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6901063601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6522216 + ... + 6523273.

Almost surely, 2^6901063681 is an apocalyptic number.

It is an amenable number.

6901063681 is a deficient number, since it is larger than the sum of its proper divisors (313092289).

6901063681 is a wasteful number, since it uses less digits than its factorization.

6901063681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045535 (or 13045512 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 6901063681 is about 83072.6409896784. The cubic root of 6901063681 is about 1903.8760836405.

The spelling of 6901063681 in words is "six billion, nine hundred one million, sixty-three thousand, six hundred eighty-one".