1387727510399 has 16 divisors (see below), whose sum is σ = 1550112595200. Its totient is φ = 1236214748736.

The previous prime is 1387727510381. The next prime is 1387727510461. The reversal of 1387727510399 is 9930157277831.

It is not a de Polignac number, because 1387727510399 - 2³⁶ = 1319008033663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387727513399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26885894 + ... + 26937459.

It is an arithmetic number, because the mean of its divisors is an integer number (96882037200).

Almost surely, 2^{1387727510399} is an apocalyptic number.

1387727510399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1387727510399 is a deficient number, since it is larger than the sum of its proper divisors (162385084801).

1387727510399 is a wasteful number, since it uses less digits than its factorization.

1387727510399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53823454.

The product of its (nonzero) digits is 20003760, while the sum is 62.

The spelling of 1387727510399 in words is "one trillion, three hundred eighty-seven billion, seven hundred twenty-seven million, five hundred ten thousand, three hundred ninety-nine".