80857140633 has 6 divisors (see below), whose sum is σ = 116793647594. Its totient is φ = 53904760416.

The previous prime is 80857140607. The next prime is 80857140653. The reversal of 80857140633 is 33604175808.

80857140633 is a `hidden beast` number, since 8 + 0 + 8 + 5 + 7 + 1 + 4 + 0 + 633 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46657296009 + 34199844624 = 216003^2 + 184932^2 .

It is not a de Polignac number, because 80857140633 - 2¹³ = 80857132441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80857140653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4492063360 + ... + 4492063377.

Almost surely, 2^80857140633 is an apocalyptic number.

It is an amenable number.

80857140633 is a deficient number, since it is larger than the sum of its proper divisors (35936506961).

80857140633 is a wasteful number, since it uses less digits than its factorization.

80857140633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984126743 (or 8984126740 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 80857140633 in words is "eighty billion, eight hundred fifty-seven million, one hundred forty thousand, six hundred thirty-three".