80883815692849 has 27 divisors (see below), whose sum is σ = 88274651388417. Its totient is φ = 74078014982400.

The previous prime is 80883815692847. The next prime is 80883815692859. The reversal of 80883815692849 is 94829651838808.

The square root of 80883815692849 is 8993543.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 41955350517025 + 38928465175824 = 6477295^2 + 6239268^2 .

It is not a de Polignac number, because 80883815692849 - 2¹ = 80883815692847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80883815692847) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15316001089 + ... + 15316006369.

Almost surely, 2^{80883815692849} is an apocalyptic number.

80883815692849 is the 8993543-rd square number.

80883815692849 is the 4496772-nd centered octagonal number.

It is an amenable number.

80883815692849 is a deficient number, since it is larger than the sum of its proper divisors (7390835695568).

80883815692849 is an frugal number, since it uses more digits than its factorization.

80883815692849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10850 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 1911029760, while the sum is 79.

The spelling of 80883815692849 in words is "eighty trillion, eight hundred eighty-three billion, eight hundred fifteen million, six hundred ninety-two thousand, eight hundred forty-nine".