1351852686864 has 75 divisors (see below), whose sum is σ = 3912775029757. Its totient is φ = 450603609984.

The previous prime is 1351852686851. The next prime is 1351852686869. The reversal of 1351852686864 is 4686862581531.

The square root of 1351852686864 is 1162692.

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

1351852686864 is a `hidden beast` number, since 1 + 3 + 518 + 52 + 6 + 8 + 6 + 8 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1309330947600 + 42521739264 = 1144260^2 + 206208^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351852686869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 41840764 + ... + 41873060.

Almost surely, 2^{1351852686864} is an apocalyptic number.

1351852686864 is the 1162692-nd square number.

It is an amenable number.

1351852686864 is an abundant number, since it is smaller than the sum of its proper divisors (2560922342893).

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

1351852686864 is an frugal number, since it uses more digits than its factorization.

1351852686864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64614 (or 32302 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 63.

The spelling of 1351852686864 in words is "one trillion, three hundred fifty-one billion, eight hundred fifty-two million, six hundred eighty-six thousand, eight hundred sixty-four".