45688049943845 has 4 divisors (see below), whose sum is σ = 54825659932620. Its totient is φ = 36550439955072.

The previous prime is 45688049943841. The next prime is 45688049943847. The reversal of 45688049943845 is 54834994088654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13085069094241 + 32602980849604 = 3617329^2 + 5709902^2 .

It is a cyclic number.

It is not a de Polignac number, because 45688049943845 - 2² = 45688049943841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45688049943841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568804994380 + ... + 4568804994389.

It is an arithmetic number, because the mean of its divisors is an integer number (13706414983155).

Almost surely, 2^{45688049943845} is an apocalyptic number.

It is an amenable number.

45688049943845 is a deficient number, since it is larger than the sum of its proper divisors (9137609988775).

45688049943845 is an equidigital number, since it uses as much as digits as its factorization.

45688049943845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137609988774.

The product of its (nonzero) digits is 4777574400, while the sum is 77.

The spelling of 45688049943845 in words is "forty-five trillion, six hundred eighty-eight billion, forty-nine million, nine hundred forty-three thousand, eight hundred forty-five".