9125642635641 has 30 divisors (see below), whose sum is σ = 15857787171930. Its totient is φ = 5214652932384.

The previous prime is 9125642635639. The next prime is 9125642635651. The reversal of 9125642635641 is 1465362465219.

9125642635641 is a `hidden beast` number, since 9 + 1 + 2 + 56 + 4 + 26 + 3 + 564 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7473093820416 + 1652548815225 = 2733696^2 + 1285515^2 .

It is not a de Polignac number, because 9125642635641 - 2¹ = 9125642635639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9125642635651) 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 29 ways as a sum of consecutive naturals, for example, 1149610876 + ... + 1149618813.

It is an arithmetic number, because the mean of its divisors is an integer number (528592905731).

Almost surely, 2^{9125642635641} is an apocalyptic number.

It is an amenable number.

9125642635641 is a deficient number, since it is larger than the sum of its proper divisors (6732144536289).

9125642635641 is a wasteful number, since it uses less digits than its factorization.

9125642635641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299229715 (or 2299229699 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 9125642635641 in words is "nine trillion, one hundred twenty-five billion, six hundred forty-two million, six hundred thirty-five thousand, six hundred forty-one".