1277740570113 has 64 divisors (see below), whose sum is σ = 2288354119680. Its totient is φ = 688825171584.

The previous prime is 1277740570081. The next prime is 1277740570123. The reversal of 1277740570113 is 3110750477721.

1277740570113 is a `hidden beast` number, since 1 + 2 + 7 + 7 + 74 + 0 + 570 + 1 + 1 + 3 = 666.

It is not a de Polignac number, because 1277740570113 - 2⁵ = 1277740570081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1277740570123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1695931 + ... + 2330592.

It is an arithmetic number, because the mean of its divisors is an integer number (35755533120).

Almost surely, 2^{1277740570113} is an apocalyptic number.

It is an amenable number.

1277740570113 is a deficient number, since it is larger than the sum of its proper divisors (1010613549567).

1277740570113 is a wasteful number, since it uses less digits than its factorization.

1277740570113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026635 (or 4026629 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 45.

The spelling of 1277740570113 in words is "one trillion, two hundred seventy-seven billion, seven hundred forty million, five hundred seventy thousand, one hundred thirteen".