4047426545 has 4 divisors (see below), whose sum is σ = 4856911860. Its totient is φ = 3237941232.

The previous prime is 4047426511. The next prime is 4047426563. The reversal of 4047426545 is 5456247404.

It is a happy number.

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 2397767089 + 1649659456 = 48967^2 + 40616^2 .

It is a cyclic number.

It is not a de Polignac number, because 4047426545 - 2¹⁶ = 4047361009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404742650 + ... + 404742659.

It is an arithmetic number, because the mean of its divisors is an integer number (1214227965).

Almost surely, 2^4047426545 is an apocalyptic number.

It is an amenable number.

4047426545 is a deficient number, since it is larger than the sum of its proper divisors (809485315).

4047426545 is an equidigital number, since it uses as much as digits as its factorization.

4047426545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809485314.

The product of its (nonzero) digits is 537600, while the sum is 41.

The square root of 4047426545 is about 63619.3881218611. The cubic root of 4047426545 is about 1593.6501644601.

The spelling of 4047426545 in words is "four billion, forty-seven million, four hundred twenty-six thousand, five hundred forty-five".