1369288467556 has 27 divisors (see below), whose sum is σ = 2403002788473. Its totient is φ = 682721651040.

The previous prime is 1369288467551. The next prime is 1369288467581. The reversal of 1369288467556 is 6557648829631.

It is a happy number.

The square root of 1369288467556 is 1170166.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 392670169956 + 976618297600 = 626634^2 + 988240^2 .

It is a super-2 number, since 2×1369288467556² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369288467551) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1219312411 + ... + 1219313533.

Almost surely, 2^{1369288467556} is an apocalyptic number.

1369288467556 is the 1170166-th square number.

It is an amenable number.

1369288467556 is a deficient number, since it is larger than the sum of its proper divisors (1033714320917).

1369288467556 is an frugal number, since it uses more digits than its factorization.

1369288467556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292 (or 1646 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 70.

The spelling of 1369288467556 in words is "one trillion, three hundred sixty-nine billion, two hundred eighty-eight million, four hundred sixty-seven thousand, five hundred fifty-six".