80752557553281 has 6 divisors (see below), whose sum is σ = 116642583132530. Its totient is φ = 53835038368848.

The previous prime is 80752557553279. The next prime is 80752557553337. The reversal of 80752557553281 is 18235575525708.

80752557553281 is a `hidden beast` number, since 8 + 0 + 7 + 5 + 2 + 5 + 57 + 553 + 28 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79595392640625 + 1157164912656 = 8921625^2 + 1075716^2 .

It is not a de Polignac number, because 80752557553281 - 2¹ = 80752557553279 is a prime.

It is a super-2 number, since 2×80752557553281² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80752557553081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4486253197396 + ... + 4486253197413.

Almost surely, 2^{80752557553281} is an apocalyptic number.

It is an amenable number.

80752557553281 is a deficient number, since it is larger than the sum of its proper divisors (35890025579249).

80752557553281 is a wasteful number, since it uses less digits than its factorization.

80752557553281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972506394815 (or 8972506394812 counting only the distinct ones).

The product of its (nonzero) digits is 117600000, while the sum is 63.

The spelling of 80752557553281 in words is "eighty trillion, seven hundred fifty-two billion, five hundred fifty-seven million, five hundred fifty-three thousand, two hundred eighty-one".