1382638881251 has 2 divisors, whose sum is σ = 1382638881252. Its totient is φ = 1382638881250.

The previous prime is 1382638881203. The next prime is 1382638881257. The reversal of 1382638881251 is 1521888362831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1382638881251 - 2¹⁸ = 1382638619107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1382638881257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691319440625 + 691319440626.

It is an arithmetic number, because the mean of its divisors is an integer number (691319440626).

Almost surely, 2^{1382638881251} is an apocalyptic number.

1382638881251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382638881251 is an equidigital number, since it uses as much as digits as its factorization.

1382638881251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4423680, while the sum is 56.

The spelling of 1382638881251 in words is "one trillion, three hundred eighty-two billion, six hundred thirty-eight million, eight hundred eighty-one thousand, two hundred fifty-one".