80861954248 has 16 divisors (see below), whose sum is σ = 160534762380. Its totient is φ = 38052684288.

The previous prime is 80861954237. The next prime is 80861954263. The reversal of 80861954248 is 84245916808.

It can be written as a sum of positive squares in 2 ways, for example, as 76594990564 + 4266963684 = 276758^2 + 65322^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297286461 + ... + 297286732.

Almost surely, 2^80861954248 is an apocalyptic number.

It is an amenable number.

80861954248 is a deficient number, since it is larger than the sum of its proper divisors (79672808132).

80861954248 is a wasteful number, since it uses less digits than its factorization.

80861954248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594573216 (or 594573212 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 80861954248 in words is "eighty billion, eight hundred sixty-one million, nine hundred fifty-four thousand, two hundred forty-eight".