72152254542187 has 2 divisors, whose sum is σ = 72152254542188. Its totient is φ = 72152254542186.

The previous prime is 72152254542103. The next prime is 72152254542227. The reversal of 72152254542187 is 78124545225127.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72152254542187 is a prime.

It is not a weakly prime, because it can be changed into another prime (72152254540187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36076127271093 + 36076127271094.

It is an arithmetic number, because the mean of its divisors is an integer number (36076127271094).

Almost surely, 2^{72152254542187} is an apocalyptic number.

72152254542187 is a deficient number, since it is larger than the sum of its proper divisors (1).

72152254542187 is an equidigital number, since it uses as much as digits as its factorization.

72152254542187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544000, while the sum is 55.

The spelling of 72152254542187 in words is "seventy-two trillion, one hundred fifty-two billion, two hundred fifty-four million, five hundred forty-two thousand, one hundred eighty-seven".