11501678712 has 32 divisors (see below), whose sum is σ = 30445621200. Its totient is φ = 3608369664.

The previous prime is 11501678653. The next prime is 11501678717. The reversal of 11501678712 is 21787610511.

11501678712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11501678712² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11501678717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14094787 + ... + 14095602.

Almost surely, 2^11501678712 is an apocalyptic number.

11501678712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11501678712 is an abundant number, since it is smaller than the sum of its proper divisors (18943942488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11501678712 is a wasteful number, since it uses less digits than its factorization.

11501678712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28190415 (or 28190411 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 39.

The spelling of 11501678712 in words is "eleven billion, five hundred one million, six hundred seventy-eight thousand, seven hundred twelve".