71629080505 has 16 divisors (see below), whose sum is σ = 87651854784. Its totient is φ = 56173815360.

The previous prime is 71629080503. The next prime is 71629080529. The reversal of 71629080505 is 50508092617.

It is not a de Polignac number, because 71629080505 - 2¹ = 71629080503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71629080503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194902 + ... + 425728.

It is an arithmetic number, because the mean of its divisors is an integer number (5478240924).

Almost surely, 2^71629080505 is an apocalyptic number.

It is an amenable number.

71629080505 is a deficient number, since it is larger than the sum of its proper divisors (16022774279).

71629080505 is a wasteful number, since it uses less digits than its factorization.

71629080505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232056.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 71629080505 in words is "seventy-one billion, six hundred twenty-nine million, eighty thousand, five hundred five".