11607644772 has 18 divisors (see below), whose sum is σ = 29341546598. Its totient is φ = 3869214912.

The previous prime is 11607644771. The next prime is 11607644779. The reversal of 11607644772 is 27744670611.

11607644772 is a `hidden beast` number, since 11 + 60 + 76 + 447 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11607045696 + 599076 = 107736^2 + 774^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (11607644771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 161217253 + ... + 161217324.

Almost surely, 2^11607644772 is an apocalyptic number.

11607644772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11607644772 is an abundant number, since it is smaller than the sum of its proper divisors (17733901826).

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

11607644772 is a wasteful number, since it uses less digits than its factorization.

11607644772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322434587 (or 322434582 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 11607644772 in words is "eleven billion, six hundred seven million, six hundred forty-four thousand, seven hundred seventy-two".