71930172408767 has 2 divisors, whose sum is σ = 71930172408768. Its totient is φ = 71930172408766.

The previous prime is 71930172408749. The next prime is 71930172408769. The reversal of 71930172408767 is 76780427103917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71930172408767 - 2¹⁶ = 71930172343231 is a prime.

Together with 71930172408769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71930172408769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35965086204383 + 35965086204384.

It is an arithmetic number, because the mean of its divisors is an integer number (35965086204384).

Almost surely, 2^{71930172408767} is an apocalyptic number.

71930172408767 is a deficient number, since it is larger than the sum of its proper divisors (1).

71930172408767 is an equidigital number, since it uses as much as digits as its factorization.

71930172408767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24893568, while the sum is 62.

The spelling of 71930172408767 in words is "seventy-one trillion, nine hundred thirty billion, one hundred seventy-two million, four hundred eight thousand, seven hundred sixty-seven".