80239547042 has 8 divisors (see below), whose sum is σ = 120362741532. Its totient is φ = 40118633200.

The previous prime is 80239547041. The next prime is 80239547053. The reversal of 80239547042 is 24074593208.

It can be written as a sum of positive squares in 2 ways, for example, as 79948128001 + 291419041 = 282751^2 + 17071^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 80239546984 and 80239547002.

It is not an unprimeable number, because it can be changed into a prime (80239547041) 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, 479309 + ... + 624672.

Almost surely, 2^80239547042 is an apocalyptic number.

80239547042 is a deficient number, since it is larger than the sum of its proper divisors (40123194490).

80239547042 is a wasteful number, since it uses less digits than its factorization.

80239547042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140324.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 80239547042 in words is "eighty billion, two hundred thirty-nine million, five hundred forty-seven thousand, forty-two".