64288331091 has 12 divisors (see below), whose sum is σ = 93076382880. Its totient is φ = 42759444240.

The previous prime is 64288331053. The next prime is 64288331141. The reversal of 64288331091 is 19013388246.

It is not a de Polignac number, because 64288331091 - 2¹³ = 64288322899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64287331091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8282836 + ... + 8290593.

It is an arithmetic number, because the mean of its divisors is an integer number (7756365240).

Almost surely, 2^64288331091 is an apocalyptic number.

64288331091 is a deficient number, since it is larger than the sum of its proper divisors (28788051789).

64288331091 is a wasteful number, since it uses less digits than its factorization.

64288331091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16573866 (or 16573863 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 64288331091 in words is "sixty-four billion, two hundred eighty-eight million, three hundred thirty-one thousand, ninety-one".