1264423264338 has 32 divisors (see below), whose sum is σ = 2726178057792. Its totient is φ = 388652616000.

The previous prime is 1264423264277. The next prime is 1264423264421. The reversal of 1264423264338 is 8334623244621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8271613 + ... + 8423088.

It is an arithmetic number, because the mean of its divisors is an integer number (85193064306).

Almost surely, 2^{1264423264338} is an apocalyptic number.

1264423264338 is an abundant number, since it is smaller than the sum of its proper divisors (1461754793454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264423264338 is a wasteful number, since it uses less digits than its factorization.

1264423264338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16695690.

The product of its digits is 3981312, while the sum is 48.

The spelling of 1264423264338 in words is "one trillion, two hundred sixty-four billion, four hundred twenty-three million, two hundred sixty-four thousand, three hundred thirty-eight".