45047129919 has 32 divisors (see below), whose sum is σ = 66015475200. Its totient is φ = 27096432000.

The previous prime is 45047129899. The next prime is 45047129929. The reversal of 45047129919 is 91992174054.

It is not a de Polignac number, because 45047129919 - 2⁸ = 45047129663 is a prime.

It is a super-2 number, since 2×45047129919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45047129929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7898769 + ... + 7904469.

It is an arithmetic number, because the mean of its divisors is an integer number (2062983600).

Almost surely, 2^45047129919 is an apocalyptic number.

45047129919 is a deficient number, since it is larger than the sum of its proper divisors (20968345281).

45047129919 is a wasteful number, since it uses less digits than its factorization.

45047129919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7471.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 45047129919 in words is "forty-five billion, forty-seven million, one hundred twenty-nine thousand, nine hundred nineteen".