1277056427741 has 8 divisors (see below), whose sum is σ = 1323205256160. Its totient is φ = 1231724392912.

The previous prime is 1277056427683. The next prime is 1277056427749. The reversal of 1277056427741 is 1477246507721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1277056427741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277056427749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204195215 + ... + 204201468.

It is an arithmetic number, because the mean of its divisors is an integer number (165400657020).

Almost surely, 2^{1277056427741} is an apocalyptic number.

It is an amenable number.

1277056427741 is a deficient number, since it is larger than the sum of its proper divisors (46148828419).

1277056427741 is an equidigital number, since it uses as much as digits as its factorization.

1277056427741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408396795.

The product of its (nonzero) digits is 4609920, while the sum is 53.

The spelling of 1277056427741 in words is "one trillion, two hundred seventy-seven billion, fifty-six million, four hundred twenty-seven thousand, seven hundred forty-one".