49311531844 has 9 divisors (see below), whose sum is σ = 86295957951. Its totient is φ = 24655543860.

The previous prime is 49311531827. The next prime is 49311531847. The reversal of 49311531844 is 44813511394.

It is a happy number.

The square root of 49311531844 is 222062.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49311531844.

It is not an unprimeable number, because it can be changed into a prime (49311531847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 388609 + ... + 499639.

Almost surely, 2^49311531844 is an apocalyptic number.

49311531844 is the 222062-nd square number.

It is an amenable number.

49311531844 is a deficient number, since it is larger than the sum of its proper divisors (36984426107).

49311531844 is an frugal number, since it uses more digits than its factorization.

49311531844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222066 (or 111033 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 49311531844 in words is "forty-nine billion, three hundred eleven million, five hundred thirty-one thousand, eight hundred forty-four".