11787546601 has 4 divisors (see below), whose sum is σ = 11787828052. Its totient is φ = 11787265152.

The previous prime is 11787546559. The next prime is 11787546607. The reversal of 11787546601 is 10664578711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10664578711 = 2411 ⋅4423301.

It can be written as a sum of positive squares in 2 ways, for example, as 799475625 + 10988070976 = 28275^2 + 104824^2 .

It is a cyclic number.

It is not a de Polignac number, because 11787546601 - 2¹⁵ = 11787513833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11787546607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63936 + ... + 166321.

It is an arithmetic number, because the mean of its divisors is an integer number (2946957013).

Almost surely, 2^11787546601 is an apocalyptic number.

It is an amenable number.

11787546601 is a deficient number, since it is larger than the sum of its proper divisors (281451).

11787546601 is an equidigital number, since it uses as much as digits as its factorization.

11787546601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281450.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 11787546601 in words is "eleven billion, seven hundred eighty-seven million, five hundred forty-six thousand, six hundred one".