11442525761 has 8 divisors (see below), whose sum is σ = 11759202600. Its totient is φ = 11126239488.

The previous prime is 11442525727. The next prime is 11442525769. The reversal of 11442525761 is 16752524411.

It can be written as a sum of positive squares in 4 ways, for example, as 6304360000 + 5138165761 = 79400^2 + 71681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11442525761 is a prime.

It is a super-2 number, since 2×11442525761² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11442525769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37736 + ... + 155913.

It is an arithmetic number, because the mean of its divisors is an integer number (1469900325).

Almost surely, 2^11442525761 is an apocalyptic number.

It is an amenable number.

11442525761 is a deficient number, since it is larger than the sum of its proper divisors (316676839).

11442525761 is a wasteful number, since it uses less digits than its factorization.

11442525761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195283.

The product of its digits is 67200, while the sum is 38.

The spelling of 11442525761 in words is "eleven billion, four hundred forty-two million, five hundred twenty-five thousand, seven hundred sixty-one".