45131619768 has 64 divisors (see below), whose sum is σ = 113903328000. Its totient is φ = 14901138432.

The previous prime is 45131619727. The next prime is 45131619769. The reversal of 45131619768 is 86791613154.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 45131619768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131619769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449096 + ... + 1479912.

It is an arithmetic number, because the mean of its divisors is an integer number (1779739500).

Almost surely, 2^45131619768 is an apocalyptic number.

It is an amenable number.

45131619768 is an abundant number, since it is smaller than the sum of its proper divisors (68771708232).

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

45131619768 is a wasteful number, since it uses less digits than its factorization.

45131619768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31404 (or 31400 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 45131619768 in words is "forty-five billion, one hundred thirty-one million, six hundred nineteen thousand, seven hundred sixty-eight".