11687504354837 has 4 divisors (see below), whose sum is σ = 11687634538560. Its totient is φ = 11687374171116.

The previous prime is 11687504354833. The next prime is 11687504354861. The reversal of 11687504354837 is 73845340578611.

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.

It is a cyclic number.

It is not a de Polignac number, because 11687504354837 - 2² = 11687504354833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11687504354837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11687504354833) 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, 64957103 + ... + 65136780.

It is an arithmetic number, because the mean of its divisors is an integer number (2921908634640).

Almost surely, 2^{11687504354837} is an apocalyptic number.

It is an amenable number.

11687504354837 is a deficient number, since it is larger than the sum of its proper divisors (130183723).

11687504354837 is an equidigital number, since it uses as much as digits as its factorization.

11687504354837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130183722.

The product of its (nonzero) digits is 67737600, while the sum is 62.

The spelling of 11687504354837 in words is "eleven trillion, six hundred eighty-seven billion, five hundred four million, three hundred fifty-four thousand, eight hundred thirty-seven".