11687738041 has 4 divisors (see below), whose sum is σ = 13357414912. Its totient is φ = 10018061172.

The previous prime is 11687738039. The next prime is 11687738077. The reversal of 11687738041 is 14083778611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14083778611 = 7 ⋅2011968373.

It is not a de Polignac number, because 11687738041 - 2¹ = 11687738039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11687737982 and 11687738000.

It is not an unprimeable number, because it can be changed into a prime (11687738941) 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, 834838425 + ... + 834838438.

It is an arithmetic number, because the mean of its divisors is an integer number (3339353728).

Almost surely, 2^11687738041 is an apocalyptic number.

It is an amenable number.

11687738041 is a deficient number, since it is larger than the sum of its proper divisors (1669676871).

11687738041 is an equidigital number, since it uses as much as digits as its factorization.

11687738041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669676870.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 11687738041 in words is "eleven billion, six hundred eighty-seven million, seven hundred thirty-eight thousand, forty-one".