72028202417 has 2 divisors, whose sum is σ = 72028202418. Its totient is φ = 72028202416.

The previous prime is 72028202387. The next prime is 72028202429. The reversal of 72028202417 is 71420282027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37622033296 + 34406169121 = 193964^2 + 185489^2 .

It is a cyclic number.

It is not a de Polignac number, because 72028202417 - 2²² = 72024008113 is a prime.

It is not a weakly prime, because it can be changed into another prime (72028202117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36014101208 + 36014101209.

It is an arithmetic number, because the mean of its divisors is an integer number (36014101209).

Almost surely, 2^72028202417 is an apocalyptic number.

It is an amenable number.

72028202417 is a deficient number, since it is larger than the sum of its proper divisors (1).

72028202417 is an equidigital number, since it uses as much as digits as its factorization.

72028202417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 35.

The spelling of 72028202417 in words is "seventy-two billion, twenty-eight million, two hundred two thousand, four hundred seventeen".