11919398707 has 4 divisors (see below), whose sum is σ = 12241544656. Its totient is φ = 11597252760.

The previous prime is 11919398693. The next prime is 11919398741. The reversal of 11919398707 is 70789391911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11919398707 - 2²³ = 11911010099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11919398747) 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, 161072919 + ... + 161072992.

It is an arithmetic number, because the mean of its divisors is an integer number (3060386164).

Almost surely, 2^11919398707 is an apocalyptic number.

11919398707 is a deficient number, since it is larger than the sum of its proper divisors (322145949).

11919398707 is an equidigital number, since it uses as much as digits as its factorization.

11919398707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322145948.

The product of its (nonzero) digits is 857304, while the sum is 55.

The spelling of 11919398707 in words is "eleven billion, nine hundred nineteen million, three hundred ninety-eight thousand, seven hundred seven".