72985155883 has 2 divisors, whose sum is σ = 72985155884. Its totient is φ = 72985155882.

The previous prime is 72985155821. The next prime is 72985155911. The reversal of 72985155883 is 38855158927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72985155883 - 2¹⁷ = 72985024811 is a prime.

It is not a weakly prime, because it can be changed into another prime (72985195883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36492577941 + 36492577942.

It is an arithmetic number, because the mean of its divisors is an integer number (36492577942).

Almost surely, 2^72985155883 is an apocalyptic number.

72985155883 is a deficient number, since it is larger than the sum of its proper divisors (1).

72985155883 is an equidigital number, since it uses as much as digits as its factorization.

72985155883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192000, while the sum is 61.

The spelling of 72985155883 in words is "seventy-two billion, nine hundred eighty-five million, one hundred fifty-five thousand, eight hundred eighty-three".