80434955109 has 4 divisors (see below), whose sum is σ = 107246606816. Its totient is φ = 53623303404.

The previous prime is 80434955087. The next prime is 80434955137. The reversal of 80434955109 is 90155943408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80434955109 - 2¹¹ = 80434953061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80434950109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13405825849 + ... + 13405825854.

It is an arithmetic number, because the mean of its divisors is an integer number (26811651704).

Almost surely, 2^80434955109 is an apocalyptic number.

It is an amenable number.

80434955109 is a deficient number, since it is larger than the sum of its proper divisors (26811651707).

80434955109 is a wasteful number, since it uses less digits than its factorization.

80434955109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26811651706.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 80434955109 in words is "eighty billion, four hundred thirty-four million, nine hundred fifty-five thousand, one hundred nine".