72495542887 has 2 divisors, whose sum is σ = 72495542888. Its totient is φ = 72495542886.

The previous prime is 72495542863. The next prime is 72495542897. The reversal of 72495542887 is 78824559427.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72495542887 - 2³¹ = 70348059239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72495542837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36247771443 + 36247771444.

It is an arithmetic number, because the mean of its divisors is an integer number (36247771444).

Almost surely, 2^72495542887 is an apocalyptic number.

72495542887 is a deficient number, since it is larger than the sum of its proper divisors (1).

72495542887 is an equidigital number, since it uses as much as digits as its factorization.

72495542887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45158400, while the sum is 61.

The spelling of 72495542887 in words is "seventy-two billion, four hundred ninety-five million, five hundred forty-two thousand, eight hundred eighty-seven".