64784137111 has 2 divisors, whose sum is σ = 64784137112. Its totient is φ = 64784137110.

The previous prime is 64784137091. The next prime is 64784137133. The reversal of 64784137111 is 11173148746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64784137111 - 2⁵ = 64784137079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64784137141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32392068555 + 32392068556.

It is an arithmetic number, because the mean of its divisors is an integer number (32392068556).

Almost surely, 2^64784137111 is an apocalyptic number.

64784137111 is a deficient number, since it is larger than the sum of its proper divisors (1).

64784137111 is an equidigital number, since it uses as much as digits as its factorization.

64784137111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The spelling of 64784137111 in words is "sixty-four billion, seven hundred eighty-four million, one hundred thirty-seven thousand, one hundred eleven".