72313134871 has 2 divisors, whose sum is σ = 72313134872. Its totient is φ = 72313134870.

The previous prime is 72313134851. The next prime is 72313134893. The reversal of 72313134871 is 17843131327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72313134871 - 2¹⁷ = 72313003799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72313134841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36156567435 + 36156567436.

It is an arithmetic number, because the mean of its divisors is an integer number (36156567436).

Almost surely, 2^72313134871 is an apocalyptic number.

72313134871 is a deficient number, since it is larger than the sum of its proper divisors (1).

72313134871 is an equidigital number, since it uses as much as digits as its factorization.

72313134871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The spelling of 72313134871 in words is "seventy-two billion, three hundred thirteen million, one hundred thirty-four thousand, eight hundred seventy-one".