1358863664 has 20 divisors (see below), whose sum is σ = 2633440080. Its totient is φ = 679266240.

The previous prime is 1358863663. The next prime is 1358863673. The reversal of 1358863664 is 4663688531.

It is not an unprimeable number, because it can be changed into a prime (1358863663) 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, 82694 + ... + 97754.

It is an arithmetic number, because the mean of its divisors is an integer number (131672004).

Almost surely, 2^1358863664 is an apocalyptic number.

It is an amenable number.

1358863664 is a deficient number, since it is larger than the sum of its proper divisors (1274576416).

1358863664 is a wasteful number, since it uses less digits than its factorization.

1358863664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20708 (or 20702 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 50.

The square root of 1358863664 is about 36862.7679915657. The cubic root of 1358863664 is about 1107.6229911970.

The spelling of 1358863664 in words is "one billion, three hundred fifty-eight million, eight hundred sixty-three thousand, six hundred sixty-four".