64849997711 has 2 divisors, whose sum is σ = 64849997712. Its totient is φ = 64849997710.

The previous prime is 64849997647. The next prime is 64849997747. The reversal of 64849997711 is 11779994846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64849997711 - 2⁶ = 64849997647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64849997411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32424998855 + 32424998856.

It is an arithmetic number, because the mean of its divisors is an integer number (32424998856).

Almost surely, 2^64849997711 is an apocalyptic number.

64849997711 is a deficient number, since it is larger than the sum of its proper divisors (1).

64849997711 is an equidigital number, since it uses as much as digits as its factorization.

64849997711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 65.

The spelling of 64849997711 in words is "sixty-four billion, eight hundred forty-nine million, nine hundred ninety-seven thousand, seven hundred eleven".