7494548813 has 4 divisors (see below), whose sum is σ = 7500608700. Its totient is φ = 7488488928.

The previous prime is 7494548797. The next prime is 7494548849. The reversal of 7494548813 is 3188454947.

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 5824437124 + 1670111689 = 76318^2 + 40867^2 .

It is a cyclic number.

It is not a de Polignac number, because 7494548813 - 2⁴ = 7494548797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7494548713) 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, 3028088 + ... + 3030561.

It is an arithmetic number, because the mean of its divisors is an integer number (1875152175).

Almost surely, 2^7494548813 is an apocalyptic number.

It is an amenable number.

7494548813 is a deficient number, since it is larger than the sum of its proper divisors (6059887).

7494548813 is a wasteful number, since it uses less digits than its factorization.

7494548813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059886.

The product of its digits is 3870720, while the sum is 53.

The square root of 7494548813 is about 86571.0622148071. The cubic root of 7494548813 is about 1956.9594684068.

The spelling of 7494548813 in words is "seven billion, four hundred ninety-four million, five hundred forty-eight thousand, eight hundred thirteen".