73333339997 has 2 divisors, whose sum is σ = 73333339998. Its totient is φ = 73333339996.

The previous prime is 73333339979. The next prime is 73333340051. The reversal of 73333339997 is 79993333337.

Together with previous prime (73333339979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70221820036 + 3111519961 = 264994^2 + 55781^2 .

It is a cyclic number.

It is not a de Polignac number, because 73333339997 - 2⁸ = 73333339741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73333339397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36666669998 + 36666669999.

It is an arithmetic number, because the mean of its divisors is an integer number (36666669999).

Almost surely, 2^73333339997 is an apocalyptic number.

It is an amenable number.

73333339997 is a deficient number, since it is larger than the sum of its proper divisors (1).

73333339997 is an equidigital number, since it uses as much as digits as its factorization.

73333339997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26040609, while the sum is 59.

The spelling of 73333339997 in words is "seventy-three billion, three hundred thirty-three million, three hundred thirty-nine thousand, nine hundred ninety-seven".