72707671373 has 2 divisors, whose sum is σ = 72707671374. Its totient is φ = 72707671372.

The previous prime is 72707671321. The next prime is 72707671411. The reversal of 72707671373 is 37317670727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37146009289 + 35561662084 = 192733^2 + 188578^2 .

It is a cyclic number.

It is not a de Polignac number, because 72707671373 - 2²² = 72703477069 is a prime.

It is a super-3 number, since 3×72707671373³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72707671313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36353835686 + 36353835687.

It is an arithmetic number, because the mean of its divisors is an integer number (36353835687).

Almost surely, 2^72707671373 is an apocalyptic number.

It is an amenable number.

72707671373 is a deficient number, since it is larger than the sum of its proper divisors (1).

72707671373 is an equidigital number, since it uses as much as digits as its factorization.

72707671373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1815156, while the sum is 50.

The spelling of 72707671373 in words is "seventy-two billion, seven hundred seven million, six hundred seventy-one thousand, three hundred seventy-three".