71973238791167 has 12 divisors (see below), whose sum is σ = 83745401100120. Its totient is φ = 61675557417936.

The previous prime is 71973238791161. The next prime is 71973238791173. The reversal of 71973238791167 is 76119783237917.

It is an interprime number because it is at equal distance from previous prime (71973238791161) and next prime (71973238791173).

It is not a de Polignac number, because 71973238791167 - 2¹² = 71973238787071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71973238791167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71973238791161) 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, 187784192 + ... + 188167077.

It is an arithmetic number, because the mean of its divisors is an integer number (6978783425010).

Almost surely, 2^{71973238791167} is an apocalyptic number.

71973238791167 is a deficient number, since it is larger than the sum of its proper divisors (11772162308953).

71973238791167 is a wasteful number, since it uses less digits than its factorization.

71973238791167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375955190 (or 375955183 counting only the distinct ones).

The product of its digits is 168031584, while the sum is 71.

The spelling of 71973238791167 in words is "seventy-one trillion, nine hundred seventy-three billion, two hundred thirty-eight million, seven hundred ninety-one thousand, one hundred sixty-seven".