80919536 has 10 divisors (see below), whose sum is σ = 156781632. Its totient is φ = 40459760.

The previous prime is 80919533. The next prime is 80919583. The reversal of 80919536 is 63591908.

It is a junction number, because it is equal to n+sod(n) for n = 80919493 and 80919502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80919533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2528720 + ... + 2528751.

Almost surely, 2^80919536 is an apocalyptic number.

It is an amenable number.

80919536 is a deficient number, since it is larger than the sum of its proper divisors (75862096).

80919536 is a wasteful number, since it uses less digits than its factorization.

80919536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057479 (or 5057473 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 80919536 is about 8995.5286670657. The cubic root of 80919536 is about 432.5315530456.

The spelling of 80919536 in words is "eighty million, nine hundred nineteen thousand, five hundred thirty-six".