72880244375189 has 2 divisors, whose sum is σ = 72880244375190. Its totient is φ = 72880244375188.

The previous prime is 72880244375161. The next prime is 72880244375243. The reversal of 72880244375189 is 98157344208827.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67590727364164 + 5289517011025 = 8221358^2 + 2299895^2 .

It is a cyclic number.

It is not a de Polignac number, because 72880244375189 - 2²⁴ = 72880227597973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72880244375119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36440122187594 + 36440122187595.

It is an arithmetic number, because the mean of its divisors is an integer number (36440122187595).

Almost surely, 2^{72880244375189} is an apocalyptic number.

It is an amenable number.

72880244375189 is a deficient number, since it is larger than the sum of its proper divisors (1).

72880244375189 is an equidigital number, since it uses as much as digits as its factorization.

72880244375189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216760320, while the sum is 68.

The spelling of 72880244375189 in words is "seventy-two trillion, eight hundred eighty billion, two hundred forty-four million, three hundred seventy-five thousand, one hundred eighty-nine".