72412003169897 has 2 divisors, whose sum is σ = 72412003169898. Its totient is φ = 72412003169896.

The previous prime is 72412003169881. The next prime is 72412003169911. The reversal of 72412003169897 is 79896130021427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70712306901721 + 1699696268176 = 8409061^2 + 1303724^2 .

It is a cyclic number.

It is not a de Polignac number, because 72412003169897 - 2⁴ = 72412003169881 is a prime.

It is not a weakly prime, because it can be changed into another prime (72412003169827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36206001584948 + 36206001584949.

It is an arithmetic number, because the mean of its divisors is an integer number (36206001584949).

Almost surely, 2^{72412003169897} is an apocalyptic number.

It is an amenable number.

72412003169897 is a deficient number, since it is larger than the sum of its proper divisors (1).

72412003169897 is an equidigital number, since it uses as much as digits as its factorization.

72412003169897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 72412003169897 in words is "seventy-two trillion, four hundred twelve billion, three million, one hundred sixty-nine thousand, eight hundred ninety-seven".