11506278620 has 24 divisors (see below), whose sum is σ = 24234900144. Its totient is φ = 4588851456.

The previous prime is 11506278617. The next prime is 11506278683. The reversal of 11506278620 is 2687260511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846842 + ... + 860321.

It is an arithmetic number, because the mean of its divisors is an integer number (1009787506).

Almost surely, 2^11506278620 is an apocalyptic number.

11506278620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11506278620 is an abundant number, since it is smaller than the sum of its proper divisors (12728621524).

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

11506278620 is a wasteful number, since it uses less digits than its factorization.

11506278620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707509 (or 1707507 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 11506278620 in words is "eleven billion, five hundred six million, two hundred seventy-eight thousand, six hundred twenty".