616543487999 has 8 divisors (see below), whose sum is σ = 618130399488. Its totient is φ = 614956747680.

The previous prime is 616543487957. The next prime is 616543488049. The reversal of 616543487999 is 999784345616.

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

It is not a de Polignac number, because 616543487999 - 2¹⁶ = 616543422463 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 (616543487929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10463729 + ... + 10522485.

It is an arithmetic number, because the mean of its divisors is an integer number (77266299936).

Almost surely, 2^616543487999 is an apocalyptic number.

616543487999 is a deficient number, since it is larger than the sum of its proper divisors (1586911489).

616543487999 is a wasteful number, since it uses less digits than its factorization.

616543487999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85585.

The product of its digits is 352719360, while the sum is 71.

The spelling of 616543487999 in words is "six hundred sixteen billion, five hundred forty-three million, four hundred eighty-seven thousand, nine hundred ninety-nine".