11506278712 has 16 divisors (see below), whose sum is σ = 21834204840. Its totient is φ = 5683824096.

The previous prime is 11506278683. The next prime is 11506278713. The reversal of 11506278712 is 21787260511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506278713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8663703 + ... + 8665030.

Almost surely, 2^11506278712 is an apocalyptic number.

It is an amenable number.

11506278712 is a deficient number, since it is larger than the sum of its proper divisors (10327926128).

11506278712 is a wasteful number, since it uses less digits than its factorization.

11506278712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17328822 (or 17328818 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 11506278712 in words is "eleven billion, five hundred six million, two hundred seventy-eight thousand, seven hundred twelve".