47045545819 has 4 divisors (see below), whose sum is σ = 47530551544. Its totient is φ = 46560540096.

The previous prime is 47045545747. The next prime is 47045545831. The reversal of 47045545819 is 91854554074.

47045545819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47045545819 - 2⁷ = 47045545691 is a prime.

It is a super-2 number, since 2×47045545819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47045545889) 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, 242502717 + ... + 242502910.

It is an arithmetic number, because the mean of its divisors is an integer number (11882637886).

Almost surely, 2^47045545819 is an apocalyptic number.

47045545819 is a deficient number, since it is larger than the sum of its proper divisors (485005725).

47045545819 is an equidigital number, since it uses as much as digits as its factorization.

47045545819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485005724.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 47045545819 in words is "forty-seven billion, forty-five million, five hundred forty-five thousand, eight hundred nineteen".