72635377353653 has 2 divisors, whose sum is σ = 72635377353654. Its totient is φ = 72635377353652.

The previous prime is 72635377353607. The next prime is 72635377353727. The reversal of 72635377353653 is 35635377353627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60938991033649 + 11696386320004 = 7806343^2 + 3419998^2 .

It is an emirp because it is prime and its reverse (35635377353627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72635377353653 - 2³⁸ = 72360499446709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72635377353653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72635377353953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36317688676826 + 36317688676827.

It is an arithmetic number, because the mean of its divisors is an integer number (36317688676827).

Almost surely, 2^{72635377353653} is an apocalyptic number.

It is an amenable number.

72635377353653 is a deficient number, since it is larger than the sum of its proper divisors (1).

72635377353653 is an equidigital number, since it uses as much as digits as its factorization.

72635377353653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 750141000, while the sum is 65.

The spelling of 72635377353653 in words is "seventy-two trillion, six hundred thirty-five billion, three hundred seventy-seven million, three hundred fifty-three thousand, six hundred fifty-three".