1380637280801 has 2 divisors, whose sum is σ = 1380637280802. Its totient is φ = 1380637280800.

The previous prime is 1380637280773. The next prime is 1380637280833. The reversal of 1380637280801 is 1080827360831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184962873600 + 195674407201 = 1088560^2 + 442351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380637280801 is a prime.

It is a super-2 number, since 2×1380637280801² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1380637280401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690318640400 + 690318640401.

It is an arithmetic number, because the mean of its divisors is an integer number (690318640401).

Almost surely, 2^{1380637280801} is an apocalyptic number.

It is an amenable number.

1380637280801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380637280801 is an equidigital number, since it uses as much as digits as its factorization.

1380637280801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 1380637280801 in words is "one trillion, three hundred eighty billion, six hundred thirty-seven million, two hundred eighty thousand, eight hundred one".