1377760276691 has 2 divisors, whose sum is σ = 1377760276692. Its totient is φ = 1377760276690.

The previous prime is 1377760276663. The next prime is 1377760276709. The reversal of 1377760276691 is 1966720677731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1377760276691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1377763276691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688880138345 + 688880138346.

It is an arithmetic number, because the mean of its divisors is an integer number (688880138346).

Almost surely, 2^{1377760276691} is an apocalyptic number.

1377760276691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377760276691 is an equidigital number, since it uses as much as digits as its factorization.

1377760276691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28005264, while the sum is 62.

The spelling of 1377760276691 in words is "one trillion, three hundred seventy-seven billion, seven hundred sixty million, two hundred seventy-six thousand, six hundred ninety-one".