64361311 has 4 divisors (see below), whose sum is σ = 73555792. Its totient is φ = 55166832.

The previous prime is 64361273. The next prime is 64361317. The reversal of 64361311 is 11316346.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64361311 - 2¹⁵ = 64328543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64361317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4597230 + ... + 4597243.

It is an arithmetic number, because the mean of its divisors is an integer number (18388948).

Almost surely, 2^64361311 is an apocalyptic number.

64361311 is a deficient number, since it is larger than the sum of its proper divisors (9194481).

64361311 is an equidigital number, since it uses as much as digits as its factorization.

64361311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194480.

The product of its digits is 1296, while the sum is 25.

The square root of 64361311 is about 8022.5501556550. The cubic root of 64361311 is about 400.7513191652.

Adding to 64361311 its reverse (11316346), we get a palindrome (75677657).

The spelling of 64361311 in words is "sixty-four million, three hundred sixty-one thousand, three hundred eleven".