64553211787 has 2 divisors, whose sum is σ = 64553211788. Its totient is φ = 64553211786.

The previous prime is 64553211781. The next prime is 64553211817. The reversal of 64553211787 is 78711235546.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64553211787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64553211787.

It is not a weakly prime, because it can be changed into another prime (64553211781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32276605893 + 32276605894.

It is an arithmetic number, because the mean of its divisors is an integer number (32276605894).

Almost surely, 2^64553211787 is an apocalyptic number.

64553211787 is a deficient number, since it is larger than the sum of its proper divisors (1).

64553211787 is an equidigital number, since it uses as much as digits as its factorization.

64553211787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The spelling of 64553211787 in words is "sixty-four billion, five hundred fifty-three million, two hundred eleven thousand, seven hundred eighty-seven".