1356869780570 has 16 divisors (see below), whose sum is σ = 2442415154688. Its totient is φ = 542736901200.

The previous prime is 1356869780561. The next prime is 1356869780593. The reversal of 1356869780570 is 750879686531.

It is a junction number, because it is equal to n+sod(n) for n = 1356869780497 and 1356869780506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849206 + ... + 1853345.

It is an arithmetic number, because the mean of its divisors is an integer number (152650947168).

Almost surely, 2^{1356869780570} is an apocalyptic number.

1356869780570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1356869780570 is a deficient number, since it is larger than the sum of its proper divisors (1085545374118).

1356869780570 is a wasteful number, since it uses less digits than its factorization.

1356869780570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752765.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 1356869780570 in words is "one trillion, three hundred fifty-six billion, eight hundred sixty-nine million, seven hundred eighty thousand, five hundred seventy".