80263575356485 has 16 divisors (see below), whose sum is σ = 97295879332080. Its totient is φ = 63558964085760.

The previous prime is 80263575356483. The next prime is 80263575356521. The reversal of 80263575356485 is 58465357536208.

It can be written as a sum of positive squares in 8 ways, for example, as 608646504964 + 79654928851521 = 780158^2 + 8924961^2 .

It is not a de Polignac number, because 80263575356485 - 2¹ = 80263575356483 is a prime.

It is a super-2 number, since 2×80263575356485² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80263575356485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80263575356483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72139236 + ... + 73243405.

It is an arithmetic number, because the mean of its divisors is an integer number (6080992458255).

Almost surely, 2^{80263575356485} is an apocalyptic number.

It is an amenable number.

80263575356485 is a deficient number, since it is larger than the sum of its proper divisors (17032303975595).

80263575356485 is a wasteful number, since it uses less digits than its factorization.

80263575356485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145383768.

The product of its (nonzero) digits is 725760000, while the sum is 67.

The spelling of 80263575356485 in words is "eighty trillion, two hundred sixty-three billion, five hundred seventy-five million, three hundred fifty-six thousand, four hundred eighty-five".