71729461225 has 12 divisors (see below), whose sum is σ = 88950306816. Its totient is φ = 57379843280.

The previous prime is 71729461211. The next prime is 71729461273. The reversal of 71729461225 is 52216492717.

It is not a de Polignac number, because 71729461225 - 2¹¹ = 71729459177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338904 + ... + 508246.

It is an arithmetic number, because the mean of its divisors is an integer number (7412525568).

Almost surely, 2^71729461225 is an apocalyptic number.

It is an amenable number.

71729461225 is a deficient number, since it is larger than the sum of its proper divisors (17220845591).

71729461225 is a wasteful number, since it uses less digits than its factorization.

71729461225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186296 (or 186291 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The spelling of 71729461225 in words is "seventy-one billion, seven hundred twenty-nine million, four hundred sixty-one thousand, two hundred twenty-five".