49431628823 has 4 divisors (see below), whose sum is σ = 49746480120. Its totient is φ = 49116777528.

The previous prime is 49431628817. The next prime is 49431628847. The reversal of 49431628823 is 32882613494.

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

It is a cyclic number.

It is not a de Polignac number, because 49431628823 - 2²² = 49427434519 is a prime.

It is a super-3 number, since 3×49431628823³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49431328823) 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 3 ways as a sum of consecutive naturals, for example, 157425413 + ... + 157425726.

It is an arithmetic number, because the mean of its divisors is an integer number (12436620030).

Almost surely, 2^49431628823 is an apocalyptic number.

49431628823 is a deficient number, since it is larger than the sum of its proper divisors (314851297).

49431628823 is a wasteful number, since it uses less digits than its factorization.

49431628823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314851296.

The product of its digits is 1990656, while the sum is 50.

The spelling of 49431628823 in words is "forty-nine billion, four hundred thirty-one million, six hundred twenty-eight thousand, eight hundred twenty-three".