3904661775381 has 16 divisors (see below), whose sum is σ = 5218022486400. Its totient is φ = 2597207554368.

The previous prime is 3904661775373. The next prime is 3904661775389. The reversal of 3904661775381 is 1835771664093.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3904661775373) and next prime (3904661775389).

It is not a de Polignac number, because 3904661775381 - 2³ = 3904661775373 is a prime.

It is a super-2 number, since 2×3904661775381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904661775389) 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 15 ways as a sum of consecutive naturals, for example, 4682895 + ... + 5453331.

It is an arithmetic number, because the mean of its divisors is an integer number (326126405400).

Almost surely, 2^{3904661775381} is an apocalyptic number.

It is an amenable number.

3904661775381 is a deficient number, since it is larger than the sum of its proper divisors (1313360711019).

3904661775381 is a wasteful number, since it uses less digits than its factorization.

3904661775381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774268.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 3904661775381 in words is "three trillion, nine hundred four billion, six hundred sixty-one million, seven hundred seventy-five thousand, three hundred eighty-one".