1387434275236 has 9 divisors (see below), whose sum is σ = 2428014104299. Its totient is φ = 693715959724.

The previous prime is 1387434275189. The next prime is 1387434275239. The reversal of 1387434275236 is 6325724347831.

It is a happy number.

The square root of 1387434275236 is 1177894.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387434275239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2061315 + ... + 2650261.

Almost surely, 2^{1387434275236} is an apocalyptic number.

1387434275236 is the 1177894-th square number.

It is an amenable number.

1387434275236 is a deficient number, since it is larger than the sum of its proper divisors (1040579829063).

1387434275236 is an frugal number, since it uses more digits than its factorization.

1387434275236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177898 (or 588949 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 55.

The spelling of 1387434275236 in words is "one trillion, three hundred eighty-seven billion, four hundred thirty-four million, two hundred seventy-five thousand, two hundred thirty-six".