11780718418 has 16 divisors (see below), whose sum is σ = 20576566080. Its totient is φ = 4953617136.

The previous prime is 11780718373. The next prime is 11780718419. The reversal of 11780718418 is 81481708711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11780718419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7937748 + ... + 7939231.

It is an arithmetic number, because the mean of its divisors is an integer number (1286035380).

Almost surely, 2^11780718418 is an apocalyptic number.

11780718418 is a deficient number, since it is larger than the sum of its proper divisors (8795847662).

11780718418 is a wasteful number, since it uses less digits than its factorization.

11780718418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15877041.

The product of its (nonzero) digits is 100352, while the sum is 46.

The spelling of 11780718418 in words is "eleven billion, seven hundred eighty million, seven hundred eighteen thousand, four hundred eighteen".