11988741393 has 10 divisors (see below), whose sum is σ = 17909107634. Its totient is φ = 7992494208.

The previous prime is 11988741371. The next prime is 11988741409. The reversal of 11988741393 is 39314788911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11454992784 + 533748609 = 107028^2 + 23103^2 .

It is not a de Polignac number, because 11988741393 - 2¹⁰ = 11988740369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11988741593) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 74004496 + ... + 74004657.

Almost surely, 2^11988741393 is an apocalyptic number.

It is an amenable number.

11988741393 is a deficient number, since it is larger than the sum of its proper divisors (5920366241).

11988741393 is an equidigital number, since it uses as much as digits as its factorization.

11988741393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148009165 (or 148009156 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The spelling of 11988741393 in words is "eleven billion, nine hundred eighty-eight million, seven hundred forty-one thousand, three hundred ninety-three".