11178748369 has 2 divisors, whose sum is σ = 11178748370. Its totient is φ = 11178748368.

The previous prime is 11178748337. The next prime is 11178748379. The reversal of 11178748369 is 96384787111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6913091025 + 4265657344 = 83145^2 + 65312^2 .

It is a cyclic number.

It is not a de Polignac number, because 11178748369 - 2⁵ = 11178748337 is a prime.

It is a super-2 number, since 2×11178748369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11178748379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5589374184 + 5589374185.

It is an arithmetic number, because the mean of its divisors is an integer number (5589374185).

Almost surely, 2^11178748369 is an apocalyptic number.

It is an amenable number.

11178748369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11178748369 is an equidigital number, since it uses as much as digits as its factorization.

11178748369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 55.

The spelling of 11178748369 in words is "eleven billion, one hundred seventy-eight million, seven hundred forty-eight thousand, three hundred sixty-nine".