80820493058 has 18 divisors (see below), whose sum is σ = 124285053897. Its totient is φ = 39416589840.

The previous prime is 80820493031. The next prime is 80820493079. The reversal of 80820493058 is 85039402808.

It can be written as a sum of positive squares in 2 ways, for example, as 57718621009 + 23101872049 = 240247^2 + 151993^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=201023.

It is a super-3 number, since 3×80820493058³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16481435 + ... + 16486337.

Almost surely, 2^80820493058 is an apocalyptic number.

80820493058 is a deficient number, since it is larger than the sum of its proper divisors (43464560839).

80820493058 is an frugal number, since it uses more digits than its factorization.

80820493058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890 (or 4946 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 80820493058 in words is "eighty billion, eight hundred twenty million, four hundred ninety-three thousand, fifty-eight".