4209075524961 has 12 divisors (see below), whose sum is σ = 6097816640292. Its totient is φ = 2797723789056.

The previous prime is 4209075524959. The next prime is 4209075524971. The reversal of 4209075524961 is 1694255709024.

It is a happy number.

4209075524961 is a `hidden beast` number, since 4 + 20 + 9 + 0 + 7 + 5 + 524 + 96 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1231587233361 + 2977488291600 = 1109769^2 + 1725540^2 .

It is not a de Polignac number, because 4209075524961 - 2¹ = 4209075524959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4209075524898 and 4209075524907.

It is not an unprimeable number, because it can be changed into a prime (4209075524921) 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, 693876876 + ... + 693882941.

It is an arithmetic number, because the mean of its divisors is an integer number (508151386691).

Almost surely, 2^{4209075524961} is an apocalyptic number.

It is an amenable number.

4209075524961 is a deficient number, since it is larger than the sum of its proper divisors (1888741115331).

4209075524961 is a wasteful number, since it uses less digits than its factorization.

4209075524961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387760160 (or 1387760157 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 4209075524961 in words is "four trillion, two hundred nine billion, seventy-five million, five hundred twenty-four thousand, nine hundred sixty-one".