73227471899797 has 2 divisors, whose sum is σ = 73227471899798. Its totient is φ = 73227471899796.

The previous prime is 73227471899753. The next prime is 73227471899821. The reversal of 73227471899797 is 79799817472237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73000089792081 + 227382107716 = 8544009^2 + 476846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73227471899797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73227471899797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73227471899597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36613735949898 + 36613735949899.

It is an arithmetic number, because the mean of its divisors is an integer number (36613735949899).

Almost surely, 2^{73227471899797} is an apocalyptic number.

It is an amenable number.

73227471899797 is a deficient number, since it is larger than the sum of its proper divisors (1).

73227471899797 is an equidigital number, since it uses as much as digits as its factorization.

73227471899797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704884352, while the sum is 82.

The spelling of 73227471899797 in words is "seventy-three trillion, two hundred twenty-seven billion, four hundred seventy-one million, eight hundred ninety-nine thousand, seven hundred ninety-seven".