11975154587 has 8 divisors (see below), whose sum is σ = 13193150832. Its totient is φ = 10778716000.

The previous prime is 11975154571. The next prime is 11975154619. The reversal of 11975154587 is 78545157911.

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

It is a cyclic number.

It is not a de Polignac number, because 11975154587 - 2⁴ = 11975154571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11975154787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5388248 + ... + 5390469.

It is an arithmetic number, because the mean of its divisors is an integer number (1649143854).

Almost surely, 2^11975154587 is an apocalyptic number.

11975154587 is a deficient number, since it is larger than the sum of its proper divisors (1217996245).

11975154587 is a wasteful number, since it uses less digits than its factorization.

11975154587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10778829.

The product of its digits is 1764000, while the sum is 53.

The spelling of 11975154587 in words is "eleven billion, nine hundred seventy-five million, one hundred fifty-four thousand, five hundred eighty-seven".