3946100078481 has 128 divisors (see below), whose sum is σ = 6066331729920. Its totient is φ = 2260674662400.

The previous prime is 3946100078477. The next prime is 3946100078491. The reversal of 3946100078481 is 1848700016493.

It is not a de Polignac number, because 3946100078481 - 2² = 3946100078477 is a prime.

It is a super-2 number, since 2×3946100078481² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3946100078411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1717935325 + ... + 1717937621.

It is an arithmetic number, because the mean of its divisors is an integer number (47393216640).

Almost surely, 2^{3946100078481} is an apocalyptic number.

It is an amenable number.

3946100078481 is a deficient number, since it is larger than the sum of its proper divisors (2120231651439).

3946100078481 is a wasteful number, since it uses less digits than its factorization.

3946100078481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 3946100078481 in words is "three trillion, nine hundred forty-six billion, one hundred million, seventy-eight thousand, four hundred eighty-one".