1380692366957 has 2 divisors, whose sum is σ = 1380692366958. Its totient is φ = 1380692366956.

The previous prime is 1380692366927. The next prime is 1380692366993. The reversal of 1380692366957 is 7596632960831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1213128219241 + 167564147716 = 1101421^2 + 409346^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380692366957 - 2¹⁰ = 1380692365933 is a prime.

It is a super-2 number, since 2×1380692366957² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1380692366893 and 1380692366902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380692366927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690346183478 + 690346183479.

It is an arithmetic number, because the mean of its divisors is an integer number (690346183479).

Almost surely, 2^{1380692366957} is an apocalyptic number.

It is an amenable number.

1380692366957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380692366957 is an equidigital number, since it uses as much as digits as its factorization.

1380692366957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88179840, while the sum is 65.

The spelling of 1380692366957 in words is "one trillion, three hundred eighty billion, six hundred ninety-two million, three hundred sixty-six thousand, nine hundred fifty-seven".