1377370663457 has 2 divisors, whose sum is σ = 1377370663458. Its totient is φ = 1377370663456.

The previous prime is 1377370663453. The next prime is 1377370663463. The reversal of 1377370663457 is 7543660737731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713355916816 + 664014746641 = 844604^2 + 814871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377370663457 - 2² = 1377370663453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1377370663396 and 1377370663405.

It is not a weakly prime, because it can be changed into another prime (1377370663453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688685331728 + 688685331729.

It is an arithmetic number, because the mean of its divisors is an integer number (688685331729).

Almost surely, 2^{1377370663457} is an apocalyptic number.

It is an amenable number.

1377370663457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377370663457 is an equidigital number, since it uses as much as digits as its factorization.

1377370663457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46675440, while the sum is 59.

The spelling of 1377370663457 in words is "one trillion, three hundred seventy-seven billion, three hundred seventy million, six hundred sixty-three thousand, four hundred fifty-seven".