1387634070073 has 2 divisors, whose sum is σ = 1387634070074. Its totient is φ = 1387634070072.

The previous prime is 1387634070037. The next prime is 1387634070079. The reversal of 1387634070073 is 3700704367831.

It is a happy number.

Together with previous prime (1387634070037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721203482169 + 666430587904 = 849237^2 + 816352^2 .

It is an emirp because it is prime and its reverse (3700704367831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1387634070073 - 2³³ = 1379044135481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1387634069999 and 1387634070026.

It is not a weakly prime, because it can be changed into another prime (1387634070079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693817035036 + 693817035037.

It is an arithmetic number, because the mean of its divisors is an integer number (693817035037).

Almost surely, 2^{1387634070073} is an apocalyptic number.

It is an amenable number.

1387634070073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387634070073 is an equidigital number, since it uses as much as digits as its factorization.

1387634070073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 1387634070073 in words is "one trillion, three hundred eighty-seven billion, six hundred thirty-four million, seventy thousand, seventy-three".