80751539461 has 4 divisors (see below), whose sum is σ = 80805845952. Its totient is φ = 80697232972.

The previous prime is 80751539441. The next prime is 80751539527. The reversal of 80751539461 is 16493515708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80751539461 - 2²⁹ = 80214668549 is a prime.

It is a super-2 number, since 2×80751539461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80751539441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27151015 + ... + 27153988.

It is an arithmetic number, because the mean of its divisors is an integer number (20201461488).

Almost surely, 2^80751539461 is an apocalyptic number.

It is an amenable number.

80751539461 is a deficient number, since it is larger than the sum of its proper divisors (54306491).

80751539461 is a wasteful number, since it uses less digits than its factorization.

80751539461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54306490.

The product of its (nonzero) digits is 907200, while the sum is 49.

It can be divided in two parts, 8075 and 1539461, that added together give a square (1547536 = 1244²).

The spelling of 80751539461 in words is "eighty billion, seven hundred fifty-one million, five hundred thirty-nine thousand, four hundred sixty-one".