73226820001 has 2 divisors, whose sum is σ = 73226820002. Its totient is φ = 73226820000.

The previous prime is 73226819993. The next prime is 73226820013. The reversal of 73226820001 is 10002862237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58054493025 + 15172326976 = 240945^2 + 123176^2 .

It is a cyclic number.

It is not a de Polignac number, because 73226820001 - 2³ = 73226819993 is a prime.

It is not a weakly prime, because it can be changed into another prime (73226820031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36613410000 + 36613410001.

It is an arithmetic number, because the mean of its divisors is an integer number (36613410001).

Almost surely, 2^73226820001 is an apocalyptic number.

It is an amenable number.

73226820001 is a deficient number, since it is larger than the sum of its proper divisors (1).

73226820001 is an equidigital number, since it uses as much as digits as its factorization.

73226820001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 73226820001 in words is "seventy-three billion, two hundred twenty-six million, eight hundred twenty thousand, one".