1277238882116 has 24 divisors (see below), whose sum is σ = 2366791812000. Its totient is φ = 601017199232.

The previous prime is 1277238882113. The next prime is 1277238882151. The reversal of 1277238882116 is 6112888327721.

It is not an unprimeable number, because it can be changed into a prime (1277238882113) 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, 579635 + ... + 1700133.

It is an arithmetic number, because the mean of its divisors is an integer number (98616325500).

Almost surely, 2^{1277238882116} is an apocalyptic number.

It is an amenable number.

1277238882116 is a deficient number, since it is larger than the sum of its proper divisors (1089552929884).

1277238882116 is a wasteful number, since it uses less digits than its factorization.

1277238882116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137283 (or 1137281 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 56.

The spelling of 1277238882116 in words is "one trillion, two hundred seventy-seven billion, two hundred thirty-eight million, eight hundred eighty-two thousand, one hundred sixteen".