71705927955 has 16 divisors (see below), whose sum is σ = 114881061024. Its totient is φ = 38192636160.

The previous prime is 71705927899. The next prime is 71705927957. The reversal of 71705927955 is 55972950717.

It is not a de Polignac number, because 71705927955 - 2¹² = 71705923859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71705927895 and 71705927904.

It is not an unprimeable number, because it can be changed into a prime (71705927957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3146106 + ... + 3168815.

It is an arithmetic number, because the mean of its divisors is an integer number (7180066314).

Almost surely, 2^71705927955 is an apocalyptic number.

71705927955 is a deficient number, since it is larger than the sum of its proper divisors (43175133069).

71705927955 is a wasteful number, since it uses less digits than its factorization.

71705927955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315686.

The product of its (nonzero) digits is 6945750, while the sum is 57.

The spelling of 71705927955 in words is "seventy-one billion, seven hundred five million, nine hundred twenty-seven thousand, nine hundred fifty-five".