80727615436 has 24 divisors (see below), whose sum is σ = 152167806560. Its totient is φ = 37252213632.

The previous prime is 80727615401. The next prime is 80727615469. The reversal of 80727615436 is 63451672708.

It is a self number, because there is not a number n which added to its sum of digits gives 80727615436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159385 + ... + 432271.

Almost surely, 2^80727615436 is an apocalyptic number.

It is an amenable number.

80727615436 is a deficient number, since it is larger than the sum of its proper divisors (71440191124).

80727615436 is a wasteful number, since it uses less digits than its factorization.

80727615436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278593 (or 278591 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 80727615436 in words is "eighty billion, seven hundred twenty-seven million, six hundred fifteen thousand, four hundred thirty-six".