1387332397471 has 2 divisors, whose sum is σ = 1387332397472. Its totient is φ = 1387332397470.

The previous prime is 1387332397453. The next prime is 1387332397537. The reversal of 1387332397471 is 1747932337831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1387332397471 - 2¹⁹ = 1387331873183 is a prime.

It is a super-3 number, since 3×1387332397471³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387332397271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693666198735 + 693666198736.

It is an arithmetic number, because the mean of its divisors is an integer number (693666198736).

Almost surely, 2^{1387332397471} is an apocalyptic number.

1387332397471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387332397471 is an equidigital number, since it uses as much as digits as its factorization.

1387332397471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 58.

The spelling of 1387332397471 in words is "one trillion, three hundred eighty-seven billion, three hundred thirty-two million, three hundred ninety-seven thousand, four hundred seventy-one".