80734052091 has 48 divisors (see below), whose sum is σ = 139586177024. Its totient is φ = 40586832000.

The previous prime is 80734051969. The next prime is 80734052107. The reversal of 80734052091 is 19025043708.

It is not a de Polignac number, because 80734052091 - 2¹⁰ = 80734051067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80734050091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433690 + ... + 591231.

Almost surely, 2^80734052091 is an apocalyptic number.

80734052091 is a deficient number, since it is larger than the sum of its proper divisors (58852124933).

80734052091 is a wasteful number, since it uses less digits than its factorization.

80734052091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024984 (or 1024973 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

Adding to 80734052091 its reverse (19025043708), we get a palindrome (99759095799).

The spelling of 80734052091 in words is "eighty billion, seven hundred thirty-four million, fifty-two thousand, ninety-one".