72882161880391 has 2 divisors, whose sum is σ = 72882161880392. Its totient is φ = 72882161880390.

The previous prime is 72882161880313. The next prime is 72882161880421. The reversal of 72882161880391 is 19308816128827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72882161880391 - 2²⁷ = 72882027662663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72882161880991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36441080940195 + 36441080940196.

It is an arithmetic number, because the mean of its divisors is an integer number (36441080940196).

Almost surely, 2^{72882161880391} is an apocalyptic number.

72882161880391 is a deficient number, since it is larger than the sum of its proper divisors (1).

72882161880391 is an equidigital number, since it uses as much as digits as its factorization.

72882161880391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18579456, while the sum is 64.

The spelling of 72882161880391 in words is "seventy-two trillion, eight hundred eighty-two billion, one hundred sixty-one million, eight hundred eighty thousand, three hundred ninety-one".