5144274638 has 4 divisors (see below), whose sum is σ = 7716411960. Its totient is φ = 2572137318.

The previous prime is 5144274637. The next prime is 5144274659. The reversal of 5144274638 is 8364724415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8364724415 = 5 ⋅1672944883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144274637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286068658 + ... + 1286068661.

It is an arithmetic number, because the mean of its divisors is an integer number (1929102990).

Almost surely, 2^5144274638 is an apocalyptic number.

5144274638 is a deficient number, since it is larger than the sum of its proper divisors (2572137322).

5144274638 is a wasteful number, since it uses less digits than its factorization.

5144274638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572137321.

The product of its digits is 645120, while the sum is 44.

The square root of 5144274638 is about 71723.5988918571. The cubic root of 5144274638 is about 1726.2673191244.

The spelling of 5144274638 in words is "five billion, one hundred forty-four million, two hundred seventy-four thousand, six hundred thirty-eight".