80711909450 has 24 divisors (see below), whose sum is σ = 153615415008. Its totient is φ = 31533954480.

The previous prime is 80711909429. The next prime is 80711909459. The reversal of 80711909450 is 5490911708.

It is not an unprimeable number, because it can be changed into a prime (80711909459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18768062 + ... + 18772361.

It is an arithmetic number, because the mean of its divisors is an integer number (6400642292).

Almost surely, 2^80711909450 is an apocalyptic number.

80711909450 is a deficient number, since it is larger than the sum of its proper divisors (72903505558).

80711909450 is a wasteful number, since it uses less digits than its factorization.

80711909450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37540478 (or 37540473 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 80711909450 in words is "eighty billion, seven hundred eleven million, nine hundred nine thousand, four hundred fifty".