802720546243 has 32 divisors (see below), whose sum is σ = 1006555594752. Its totient is φ = 621899229600.

The previous prime is 802720546127. The next prime is 802720546249. The reversal of 802720546243 is 342645027208.

It is a de Polignac number, because none of the positive numbers 2^k-802720546243 is a prime.

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 802720546243.

It is not an unprimeable number, because it can be changed into a prime (802720546249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30621580 + ... + 30647782.

It is an arithmetic number, because the mean of its divisors is an integer number (31454862336).

Almost surely, 2^802720546243 is an apocalyptic number.

802720546243 is a deficient number, since it is larger than the sum of its proper divisors (203835048509).

802720546243 is a wasteful number, since it uses less digits than its factorization.

802720546243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28495.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 802720546243 in words is "eight hundred two billion, seven hundred twenty million, five hundred forty-six thousand, two hundred forty-three".