11761725667842 has 24 divisors (see below), whose sum is σ = 25485747775020. Its totient is φ = 3920266172160.

The previous prime is 11761725667837. The next prime is 11761725667871. The reversal of 11761725667842 is 24876652716711.

11761725667842 is a `hidden beast` number, since 1 + 1 + 7 + 61 + 7 + 2 + 566 + 7 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10750995034641 + 1010730633201 = 3278871^2 + 1005351^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11761725667842.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25519459 + ... + 25976262.

Almost surely, 2^{11761725667842} is an apocalyptic number.

11761725667842 is an abundant number, since it is smaller than the sum of its proper divisors (13724022107178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11761725667842 is a wasteful number, since it uses less digits than its factorization.

11761725667842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51508418 (or 51508415 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The spelling of 11761725667842 in words is "eleven trillion, seven hundred sixty-one billion, seven hundred twenty-five million, six hundred sixty-seven thousand, eight hundred forty-two".