72869692547 has 2 divisors, whose sum is σ = 72869692548. Its totient is φ = 72869692546.

The previous prime is 72869692541. The next prime is 72869692631. The reversal of 72869692547 is 74529696827.

It is a weak prime.

It is an emirp because it is prime and its reverse (74529696827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72869692547 - 2²⁰ = 72868643971 is a prime.

It is not a weakly prime, because it can be changed into another prime (72869692541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36434846273 + 36434846274.

It is an arithmetic number, because the mean of its divisors is an integer number (36434846274).

Almost surely, 2^72869692547 is an apocalyptic number.

72869692547 is a deficient number, since it is larger than the sum of its proper divisors (1).

72869692547 is an equidigital number, since it uses as much as digits as its factorization.

72869692547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91445760, while the sum is 65.

The spelling of 72869692547 in words is "seventy-two billion, eight hundred sixty-nine million, six hundred ninety-two thousand, five hundred forty-seven".