45145573919 has 8 divisors (see below), whose sum is σ = 46832089920. Its totient is φ = 43486934400.

The previous prime is 45145573867. The next prime is 45145573931. The reversal of 45145573919 is 91937554154.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45145573919 is a prime.

It is a super-2 number, since 2×45145573919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145573619) 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 7 ways as a sum of consecutive naturals, for example, 6965822 + ... + 6972299.

It is an arithmetic number, because the mean of its divisors is an integer number (5854011240).

Almost surely, 2^45145573919 is an apocalyptic number.

45145573919 is a deficient number, since it is larger than the sum of its proper divisors (1686516001).

45145573919 is a wasteful number, since it uses less digits than its factorization.

45145573919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13938241.

The product of its digits is 3402000, while the sum is 53.

The spelling of 45145573919 in words is "forty-five billion, one hundred forty-five million, five hundred seventy-three thousand, nine hundred nineteen".