7661712710171 has 4 divisors (see below), whose sum is σ = 8251075226352. Its totient is φ = 7072350193992.

The previous prime is 7661712710129. The next prime is 7661712710173. The reversal of 7661712710171 is 1710172171667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7661712710171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7661712710173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294681258071 + ... + 294681258096.

It is an arithmetic number, because the mean of its divisors is an integer number (2062768806588).

Almost surely, 2^{7661712710171} is an apocalyptic number.

7661712710171 is a deficient number, since it is larger than the sum of its proper divisors (589362516181).

7661712710171 is a wasteful number, since it uses less digits than its factorization.

7661712710171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589362516180.

The product of its (nonzero) digits is 172872, while the sum is 47.

The spelling of 7661712710171 in words is "seven trillion, six hundred sixty-one billion, seven hundred twelve million, seven hundred ten thousand, one hundred seventy-one".