72891774119 has 2 divisors, whose sum is σ = 72891774120. Its totient is φ = 72891774118.

The previous prime is 72891774107. The next prime is 72891774121. The reversal of 72891774119 is 91147719827.

It is a strong prime.

It is an emirp because it is prime and its reverse (91147719827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72891774119 - 2⁴ = 72891774103 is a prime.

It is a super-2 number, since 2×72891774119² (a number of 23 digits) contains 22 as substring.

Together with 72891774121, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72891774419) 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, 36445887059 + 36445887060.

It is an arithmetic number, because the mean of its divisors is an integer number (36445887060).

Almost surely, 2^72891774119 is an apocalyptic number.

72891774119 is a deficient number, since it is larger than the sum of its proper divisors (1).

72891774119 is an equidigital number, since it uses as much as digits as its factorization.

72891774119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 56.

The spelling of 72891774119 in words is "seventy-two billion, eight hundred ninety-one million, seven hundred seventy-four thousand, one hundred nineteen".