72745086373 has 2 divisors, whose sum is σ = 72745086374. Its totient is φ = 72745086372.

The previous prime is 72745086371. The next prime is 72745086413. The reversal of 72745086373 is 37368054727.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72663671844 + 81414529 = 269562^2 + 9023^2 .

It is a cyclic number.

It is not a de Polignac number, because 72745086373 - 2¹ = 72745086371 is a prime.

Together with 72745086371, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72745086373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72745086371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36372543186 + 36372543187.

It is an arithmetic number, because the mean of its divisors is an integer number (36372543187).

Almost surely, 2^72745086373 is an apocalyptic number.

It is an amenable number.

72745086373 is a deficient number, since it is larger than the sum of its proper divisors (1).

72745086373 is an equidigital number, since it uses as much as digits as its factorization.

72745086373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 72745086373 in words is "seventy-two billion, seven hundred forty-five million, eighty-six thousand, three hundred seventy-three".