11988290507 has 4 divisors (see below), whose sum is σ = 11993349096. Its totient is φ = 11983231920.

The previous prime is 11988290491. The next prime is 11988290513. The reversal of 11988290507 is 70509288911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70509288911 = 23 ⋅3065621257.

It is a cyclic number.

It is not a de Polignac number, because 11988290507 - 2⁴ = 11988290491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11988299507) 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 3 ways as a sum of consecutive naturals, for example, 2525738 + ... + 2530479.

It is an arithmetic number, because the mean of its divisors is an integer number (2998337274).

Almost surely, 2^11988290507 is an apocalyptic number.

11988290507 is a deficient number, since it is larger than the sum of its proper divisors (5058589).

11988290507 is an equidigital number, since it uses as much as digits as its factorization.

11988290507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058588.

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 11988290507 in words is "eleven billion, nine hundred eighty-eight million, two hundred ninety thousand, five hundred seven".