80423979050 has 24 divisors (see below), whose sum is σ = 149596088556. Its totient is φ = 32167981440.

The previous prime is 80423979037. The next prime is 80423979059. The reversal of 80423979050 is 5097932408.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 36901257409 + 43522721641 = 192097^2 + 208621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80423978986 and 80423979004.

It is not an unprimeable number, because it can be changed into a prime (80423979059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1817792 + ... + 1861508.

Almost surely, 2^80423979050 is an apocalyptic number.

80423979050 is a deficient number, since it is larger than the sum of its proper divisors (69172109506).

80423979050 is a wasteful number, since it uses less digits than its factorization.

80423979050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80522 (or 80517 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 80423979050 in words is "eighty billion, four hundred twenty-three million, nine hundred seventy-nine thousand, fifty".