3581345662047 has 24 divisors (see below), whose sum is σ = 5327325369600. Its totient is φ = 2317386481488.

The previous prime is 3581345662039. The next prime is 3581345662093. The reversal of 3581345662047 is 7402665431853.

3581345662047 is a `hidden beast` number, since 3 + 5 + 8 + 1 + 3 + 4 + 5 + 6 + 620 + 4 + 7 = 666.

It is not a de Polignac number, because 3581345662047 - 2³ = 3581345662039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3581345661984 and 3581345662002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581345666047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42644953 + ... + 42728850.

It is an arithmetic number, because the mean of its divisors is an integer number (221971890400).

Almost surely, 2^{3581345662047} is an apocalyptic number.

3581345662047 is a deficient number, since it is larger than the sum of its proper divisors (1745979707553).

3581345662047 is a wasteful number, since it uses less digits than its factorization.

3581345662047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85373947 (or 85373944 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 3581345662047 in words is "three trillion, five hundred eighty-one billion, three hundred forty-five million, six hundred sixty-two thousand, forty-seven".