72275671687 has 2 divisors, whose sum is σ = 72275671688. Its totient is φ = 72275671686.

The previous prime is 72275671667. The next prime is 72275671709. The reversal of 72275671687 is 78617657227.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72275671687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72275671607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36137835843 + 36137835844.

It is an arithmetic number, because the mean of its divisors is an integer number (36137835844).

Almost surely, 2^72275671687 is an apocalyptic number.

72275671687 is a deficient number, since it is larger than the sum of its proper divisors (1).

72275671687 is an equidigital number, since it uses as much as digits as its factorization.

72275671687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13829760, while the sum is 58.

The spelling of 72275671687 in words is "seventy-two billion, two hundred seventy-five million, six hundred seventy-one thousand, six hundred eighty-seven".