45047778469 has 4 divisors (see below), whose sum is σ = 45080878860. Its totient is φ = 45014678080.

The previous prime is 45047778467. The next prime is 45047778481. The reversal of 45047778469 is 96487774054.

45047778469 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 can be written as a sum of positive squares in 2 ways, for example, as 17810237025 + 27237541444 = 133455^2 + 165038^2 .

It is a cyclic number.

It is not a de Polignac number, because 45047778469 - 2¹ = 45047778467 is a prime.

It is a super-2 number, since 2×45047778469² (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 (45047778467) 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, 16548154 + ... + 16550875.

It is an arithmetic number, because the mean of its divisors is an integer number (11270219715).

Almost surely, 2^45047778469 is an apocalyptic number.

It is an amenable number.

45047778469 is a deficient number, since it is larger than the sum of its proper divisors (33100391).

45047778469 is a wasteful number, since it uses less digits than its factorization.

45047778469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33100390.

The product of its (nonzero) digits is 47416320, while the sum is 61.

The spelling of 45047778469 in words is "forty-five billion, forty-seven million, seven hundred seventy-eight thousand, four hundred sixty-nine".