1357678660 has 48 divisors (see below), whose sum is σ = 3135799296. Its totient is φ = 490626432.

The previous prime is 1357678627. The next prime is 1357678681. The reversal of 1357678660 is 668767531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43332 + ... + 67771.

It is an arithmetic number, because the mean of its divisors is an integer number (65329152).

Almost surely, 2^1357678660 is an apocalyptic number.

1357678660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1357678660 is an abundant number, since it is smaller than the sum of its proper divisors (1778120636).

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

1357678660 is a wasteful number, since it uses less digits than its factorization.

1357678660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111172 (or 111170 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 1357678660 is about 36846.6913032907. The cubic root of 1357678660 is about 1107.3009281307.

The spelling of 1357678660 in words is "one billion, three hundred fifty-seven million, six hundred seventy-eight thousand, six hundred sixty".