1277742313793 has 12 divisors (see below), whose sum is σ = 1404504514560. Its totient is φ = 1161547568280.

The previous prime is 1277742313787. The next prime is 1277742313831. The reversal of 1277742313793 is 3973132477721.

It is not a de Polignac number, because 1277742313793 - 2²⁶ = 1277675204929 is a prime.

It is a super-3 number, since 3×1277742313793³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1277742313763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4189196 + ... + 4483842.

It is an arithmetic number, because the mean of its divisors is an integer number (117042042880).

Almost surely, 2^{1277742313793} is an apocalyptic number.

It is an amenable number.

1277742313793 is a deficient number, since it is larger than the sum of its proper divisors (126762200767).

1277742313793 is a wasteful number, since it uses less digits than its factorization.

1277742313793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330508 (or 330497 counting only the distinct ones).

The product of its digits is 9335088, while the sum is 56.

The spelling of 1277742313793 in words is "one trillion, two hundred seventy-seven billion, seven hundred forty-two million, three hundred thirteen thousand, seven hundred ninety-three".