11742434561087 has 4 divisors (see below), whose sum is σ = 11742454917720. Its totient is φ = 11742414204456.

The previous prime is 11742434561083. The next prime is 11742434561129. The reversal of 11742434561087 is 78016543424711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11742434561087 - 2² = 11742434561083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11742434561083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9287048 + ... + 10475405.

It is an arithmetic number, because the mean of its divisors is an integer number (2935613729430).

Almost surely, 2^{11742434561087} is an apocalyptic number.

11742434561087 is a deficient number, since it is larger than the sum of its proper divisors (20356633).

11742434561087 is an equidigital number, since it uses as much as digits as its factorization.

11742434561087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20356632.

The product of its (nonzero) digits is 4515840, while the sum is 53.

Adding to 11742434561087 its reverse (78016543424711), we get a palindrome (89758977985798).

The spelling of 11742434561087 in words is "eleven trillion, seven hundred forty-two billion, four hundred thirty-four million, five hundred sixty-one thousand, eighty-seven".