73512273697 has 2 divisors, whose sum is σ = 73512273698. Its totient is φ = 73512273696.

The previous prime is 73512273691. The next prime is 73512273707. The reversal of 73512273697 is 79637221537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65122446481 + 8389827216 = 255191^2 + 91596^2 .

It is a cyclic number.

It is not a de Polignac number, because 73512273697 - 2³⁵ = 39152535329 is a prime.

It is not a weakly prime, because it can be changed into another prime (73512273691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36756136848 + 36756136849.

It is an arithmetic number, because the mean of its divisors is an integer number (36756136849).

Almost surely, 2^73512273697 is an apocalyptic number.

It is an amenable number.

73512273697 is a deficient number, since it is larger than the sum of its proper divisors (1).

73512273697 is an equidigital number, since it uses as much as digits as its factorization.

73512273697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 52.

The spelling of 73512273697 in words is "seventy-three billion, five hundred twelve million, two hundred seventy-three thousand, six hundred ninety-seven".