3559400193861 has 12 divisors (see below), whose sum is σ = 5141373238092. Its totient is φ = 2372925430656.

The previous prime is 3559400193857. The next prime is 3559400193863. The reversal of 3559400193861 is 1683910049553.

3559400193861 is a `hidden beast` number, since 3 + 5 + 594 + 0 + 0 + 19 + 38 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1902760912836 + 1656639281025 = 1379406^2 + 1287105^2 .

It is not a de Polignac number, because 3559400193861 - 2² = 3559400193857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3559400193798 and 3559400193807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3559400193863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3512355 + ... + 4410831.

It is an arithmetic number, because the mean of its divisors is an integer number (428447769841).

Almost surely, 2^{3559400193861} is an apocalyptic number.

It is an amenable number.

3559400193861 is a deficient number, since it is larger than the sum of its proper divisors (1581973044231).

3559400193861 is a wasteful number, since it uses less digits than its factorization.

3559400193861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338660 (or 1338657 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 3559400193861 in words is "three trillion, five hundred fifty-nine billion, four hundred million, one hundred ninety-three thousand, eight hundred sixty-one".