11642432625 has 24 divisors (see below), whose sum is σ = 20987427240. Its totient is φ = 6209296800.

The previous prime is 11642432623. The next prime is 11642432639. The reversal of 11642432625 is 52623424611.

11642432625 is a `hidden beast` number, since 1 + 1 + 6 + 4 + 24 + 3 + 2 + 625 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2396304 + 11640036321 = 1548^2 + 107889^2 .

It is not a de Polignac number, because 11642432625 - 2¹ = 11642432623 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11642432625.

It is not an unprimeable number, because it can be changed into a prime (11642432623) 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 23 ways as a sum of consecutive naturals, for example, 5173290 + ... + 5175539.

It is an arithmetic number, because the mean of its divisors is an integer number (874476135).

Almost surely, 2^11642432625 is an apocalyptic number.

11642432625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11642432625 is a deficient number, since it is larger than the sum of its proper divisors (9344994615).

11642432625 is a wasteful number, since it uses less digits than its factorization.

11642432625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10348850 (or 10348837 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 11642432625 in words is "eleven billion, six hundred forty-two million, four hundred thirty-two thousand, six hundred twenty-five".