7842564518 has 8 divisors (see below), whose sum is σ = 12275318448. Its totient is φ = 3750791704.

The previous prime is 7842564517. The next prime is 7842564529. The reversal of 7842564518 is 8154652487.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842564517) 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, 85245221 + ... + 85245312.

It is an arithmetic number, because the mean of its divisors is an integer number (1534414806).

Almost surely, 2^7842564518 is an apocalyptic number.

7842564518 is a deficient number, since it is larger than the sum of its proper divisors (4432753930).

7842564518 is a wasteful number, since it uses less digits than its factorization.

7842564518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170490558.

The product of its digits is 2150400, while the sum is 50.

The square root of 7842564518 is about 88558.2549398982. The cubic root of 7842564518 is about 1986.7933607938.

The spelling of 7842564518 in words is "seven billion, eight hundred forty-two million, five hundred sixty-four thousand, five hundred eighteen".