1357865648 has 20 divisors (see below), whose sum is σ = 2675457480. Its totient is φ = 667425024.

The previous prime is 1357865611. The next prime is 1357865657. The reversal of 1357865648 is 8465687531.

It is a super-3 number, since 3×1357865648³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1357865648.

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, 718265 + ... + 720152.

It is an arithmetic number, because the mean of its divisors is an integer number (133772874).

Almost surely, 2^1357865648 is an apocalyptic number.

It is an amenable number.

1357865648 is a deficient number, since it is larger than the sum of its proper divisors (1317591832).

1357865648 is a wasteful number, since it uses less digits than its factorization.

1357865648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438484 (or 1438478 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The square root of 1357865648 is about 36849.2285943682. The cubic root of 1357865648 is about 1107.3517606012.

The spelling of 1357865648 in words is "one billion, three hundred fifty-seven million, eight hundred sixty-five thousand, six hundred forty-eight".