72941919287 has 2 divisors, whose sum is σ = 72941919288. Its totient is φ = 72941919286.

The previous prime is 72941919269. The next prime is 72941919289. The reversal of 72941919287 is 78291914927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72941919287 - 2⁶ = 72941919223 is a prime.

Together with 72941919289, 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 (72941919289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36470959643 + 36470959644.

It is an arithmetic number, because the mean of its divisors is an integer number (36470959644).

Almost surely, 2^72941919287 is an apocalyptic number.

72941919287 is a deficient number, since it is larger than the sum of its proper divisors (1).

72941919287 is an equidigital number, since it uses as much as digits as its factorization.

72941919287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 59.

The spelling of 72941919287 in words is "seventy-two billion, nine hundred forty-one million, nine hundred nineteen thousand, two hundred eighty-seven".