11309278673 has 12 divisors (see below), whose sum is σ = 14206698240. Its totient is φ = 8812424280.

The previous prime is 11309278633. The next prime is 11309278699. The reversal of 11309278673 is 37687290311.

It is a de Polignac number, because none of the positive numbers 2^k-11309278673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11309278633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6675233 + ... + 6676926.

It is an arithmetic number, because the mean of its divisors is an integer number (1183891520).

Almost surely, 2^11309278673 is an apocalyptic number.

It is an amenable number.

11309278673 is a deficient number, since it is larger than the sum of its proper divisors (2897419567).

11309278673 is a wasteful number, since it uses less digits than its factorization.

11309278673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13352188 (or 13352177 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

It can be divided in two parts, 11309 and 278673, that added together give a palindrome (289982).

The spelling of 11309278673 in words is "eleven billion, three hundred nine million, two hundred seventy-eight thousand, six hundred seventy-three".