72947967527 has 2 divisors, whose sum is σ = 72947967528. Its totient is φ = 72947967526.

The previous prime is 72947967517. The next prime is 72947967529. The reversal of 72947967527 is 72576974927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72947967527 - 2²⁸ = 72679532071 is a prime.

Together with 72947967529, 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 (72947967529) 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, 36473983763 + 36473983764.

It is an arithmetic number, because the mean of its divisors is an integer number (36473983764).

Almost surely, 2^72947967527 is an apocalyptic number.

72947967527 is a deficient number, since it is larger than the sum of its proper divisors (1).

72947967527 is an equidigital number, since it uses as much as digits as its factorization.

72947967527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93350880, while the sum is 65.

The spelling of 72947967527 in words is "seventy-two billion, nine hundred forty-seven million, nine hundred sixty-seven thousand, five hundred twenty-seven".