616749347543 has 8 divisors (see below), whose sum is σ = 704861786112. Its totient is φ = 528638256216.

The previous prime is 616749347509. The next prime is 616749347561. The reversal of 616749347543 is 345743947616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616749347543 - 2¹⁸ = 616749085399 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 (616749347243) 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 in 7 ways as a sum of consecutive naturals, for example, 995546 + ... + 1491512.

It is an arithmetic number, because the mean of its divisors is an integer number (88107723264).

Almost surely, 2^616749347543 is an apocalyptic number.

616749347543 is a deficient number, since it is larger than the sum of its proper divisors (88112438569).

616749347543 is a wasteful number, since it uses less digits than its factorization.

616749347543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673621.

The product of its digits is 45722880, while the sum is 59.

The spelling of 616749347543 in words is "six hundred sixteen billion, seven hundred forty-nine million, three hundred forty-seven thousand, five hundred forty-three".