64454526187 has 2 divisors, whose sum is σ = 64454526188. Its totient is φ = 64454526186.

The previous prime is 64454526163. The next prime is 64454526193. The reversal of 64454526187 is 78162545446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64454526187 - 2¹¹ = 64454524139 is a prime.

It is not a weakly prime, because it can be changed into another prime (64454526127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32227263093 + 32227263094.

It is an arithmetic number, because the mean of its divisors is an integer number (32227263094).

Almost surely, 2^64454526187 is an apocalyptic number.

64454526187 is a deficient number, since it is larger than the sum of its proper divisors (1).

64454526187 is an equidigital number, since it uses as much as digits as its factorization.

64454526187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6451200, while the sum is 52.

The spelling of 64454526187 in words is "sixty-four billion, four hundred fifty-four million, five hundred twenty-six thousand, one hundred eighty-seven".