5236742578 has 4 divisors (see below), whose sum is σ = 7855113870. Its totient is φ = 2618371288.

The previous prime is 5236742569. The next prime is 5236742587. The reversal of 5236742578 is 8752476325.

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

It is an interprime number because it is at equal distance from previous prime (5236742569) and next prime (5236742587).

It can be written as a sum of positive squares in only one way, i.e., 4423181049 + 813561529 = 66507^2 + 28523^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1309185643 + ... + 1309185646.

Almost surely, 2^5236742578 is an apocalyptic number.

5236742578 is a deficient number, since it is larger than the sum of its proper divisors (2618371292).

5236742578 is a wasteful number, since it uses less digits than its factorization.

5236742578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618371291.

The product of its digits is 2822400, while the sum is 49.

The square root of 5236742578 is about 72365.3409996802. The cubic root of 5236742578 is about 1736.5491320716.

The spelling of 5236742578 in words is "five billion, two hundred thirty-six million, seven hundred forty-two thousand, five hundred seventy-eight".