80548042100 has 18 divisors (see below), whose sum is σ = 174789251574. Its totient is φ = 32219216800.

The previous prime is 80548042079. The next prime is 80548042111. The reversal of 80548042100 is 124084508.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6644532196 + 73903509904 = 81514^2 + 271852^2 .

It is a super-2 number, since 2×80548042100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 402740111 + ... + 402740310.

Almost surely, 2^80548042100 is an apocalyptic number.

It is an amenable number.

80548042100 is an abundant number, since it is smaller than the sum of its proper divisors (94241209474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80548042100 is a wasteful number, since it uses less digits than its factorization.

80548042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805480435 (or 805480428 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 80548042100 in words is "eighty billion, five hundred forty-eight million, forty-two thousand, one hundred".