72687150505223 has 2 divisors, whose sum is σ = 72687150505224. Its totient is φ = 72687150505222.

The previous prime is 72687150505199. The next prime is 72687150505231. The reversal of 72687150505223 is 32250505178627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72687150505223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72687150505243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36343575252611 + 36343575252612.

It is an arithmetic number, because the mean of its divisors is an integer number (36343575252612).

Almost surely, 2^{72687150505223} is an apocalyptic number.

72687150505223 is a deficient number, since it is larger than the sum of its proper divisors (1).

72687150505223 is an equidigital number, since it uses as much as digits as its factorization.

72687150505223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056000, while the sum is 53.

The spelling of 72687150505223 in words is "seventy-two trillion, six hundred eighty-seven billion, one hundred fifty million, five hundred five thousand, two hundred twenty-three".