3954901681 has 8 divisors (see below), whose sum is σ = 4127485824. Its totient is φ = 3782370240.

The previous prime is 3954901669. The next prime is 3954901703. The reversal of 3954901681 is 1861094593.

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

It is not a de Polignac number, because 3954901681 - 2⁵ = 3954901649 is a prime.

It is a super-2 number, since 2×3954901681² = 31282494612753251522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3954901481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269001 + ... + 283321.

It is an arithmetic number, because the mean of its divisors is an integer number (515935728).

Almost surely, 2^3954901681 is an apocalyptic number.

It is an amenable number.

3954901681 is a deficient number, since it is larger than the sum of its proper divisors (172584143).

3954901681 is a wasteful number, since it uses less digits than its factorization.

3954901681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26351.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 3954901681 is about 62888.0090398798. The cubic root of 3954901681 is about 1581.4127300725.

The spelling of 3954901681 in words is "three billion, nine hundred fifty-four million, nine hundred one thousand, six hundred eighty-one".