11893878739 has 2 divisors, whose sum is σ = 11893878740. Its totient is φ = 11893878738.

The previous prime is 11893878727. The next prime is 11893878781. The reversal of 11893878739 is 93787839811.

It is a weak prime.

It is an emirp because it is prime and its reverse (93787839811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11893878739 - 2⁵ = 11893878707 is a prime.

It is not a weakly prime, because it can be changed into another prime (11893878709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5946939369 + 5946939370.

It is an arithmetic number, because the mean of its divisors is an integer number (5946939370).

Almost surely, 2^11893878739 is an apocalyptic number.

11893878739 is a deficient number, since it is larger than the sum of its proper divisors (1).

11893878739 is an equidigital number, since it uses as much as digits as its factorization.

11893878739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 64.

The spelling of 11893878739 in words is "eleven billion, eight hundred ninety-three million, eight hundred seventy-eight thousand, seven hundred thirty-nine".