73701798857 has 2 divisors, whose sum is σ = 73701798858. Its totient is φ = 73701798856.

The previous prime is 73701798787. The next prime is 73701798869. The reversal of 73701798857 is 75889710737.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42376692736 + 31325106121 = 205856^2 + 176989^2 .

It is a cyclic number.

It is not a de Polignac number, because 73701798857 - 2³² = 69406831561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73701798857.

It is not a weakly prime, because it can be changed into another prime (73701798557) 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, 36850899428 + 36850899429.

It is an arithmetic number, because the mean of its divisors is an integer number (36850899429).

Almost surely, 2^73701798857 is an apocalyptic number.

It is an amenable number.

73701798857 is a deficient number, since it is larger than the sum of its proper divisors (1).

73701798857 is an equidigital number, since it uses as much as digits as its factorization.

73701798857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20744640, while the sum is 62.

The spelling of 73701798857 in words is "seventy-three billion, seven hundred one million, seven hundred ninety-eight thousand, eight hundred fifty-seven".