523661044125042 has 48 divisors (see below), whose sum is σ = 1158742882252800. Its totient is φ = 170839249779456.

The previous prime is 523661044124989. The next prime is 523661044125049. The reversal of 523661044125042 is 240521440166325.

It is a happy number.

523661044125042 is a `hidden beast` number, since 5 + 2 + 3 + 6 + 610 + 4 + 4 + 1 + 25 + 0 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (523661044125049) 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, 353607343 + ... + 355085165.

It is an arithmetic number, because the mean of its divisors is an integer number (24140476713600).

Almost surely, 2^{523661044125042} is an apocalyptic number.

523661044125042 is an abundant number, since it is smaller than the sum of its proper divisors (635081838127758).

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

523661044125042 is a wasteful number, since it uses less digits than its factorization.

523661044125042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896727 (or 1896724 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 523661044125042 in words is "five hundred twenty-three trillion, six hundred sixty-one billion, forty-four million, one hundred twenty-five thousand, forty-two".