1318848464 has 20 divisors (see below), whose sum is σ = 2557710180. Its totient is φ = 658794240.

The previous prime is 1318848439. The next prime is 1318848473. The reversal of 1318848464 is 4648488131.

It can be written as a sum of positive squares in 2 ways, for example, as 894488464 + 424360000 = 29908^2 + 20600^2 .

It is a super-2 number, since 2×1318848464² = 3478722541990318592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21869 + ... + 55820.

It is an arithmetic number, because the mean of its divisors is an integer number (127885509).

Almost surely, 2^1318848464 is an apocalyptic number.

It is an amenable number.

1318848464 is a deficient number, since it is larger than the sum of its proper divisors (1238861716).

1318848464 is a wasteful number, since it uses less digits than its factorization.

1318848464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78758 (or 78752 counting only the distinct ones).

The product of its digits is 589824, while the sum is 47.

The square root of 1318848464 is about 36315.9532987914. The cubic root of 1318848464 is about 1096.6422301978.

The spelling of 1318848464 in words is "one billion, three hundred eighteen million, eight hundred forty-eight thousand, four hundred sixty-four".