11278038916 has 24 divisors (see below), whose sum is σ = 19868980320. Its totient is φ = 5601258432.

The previous prime is 11278038887. The next prime is 11278038953. The reversal of 11278038916 is 61983087211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669736 + ... + 686368.

It is an arithmetic number, because the mean of its divisors is an integer number (827874180).

Almost surely, 2^11278038916 is an apocalyptic number.

It is an amenable number.

11278038916 is a deficient number, since it is larger than the sum of its proper divisors (8590941404).

11278038916 is a wasteful number, since it uses less digits than its factorization.

11278038916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17763 (or 17761 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 11278038916 in words is "eleven billion, two hundred seventy-eight million, thirty-eight thousand, nine hundred sixteen".