1277876387876 has 24 divisors (see below), whose sum is σ = 2496316668384. Its totient is φ = 567344695680.

The previous prime is 1277876387861. The next prime is 1277876387881. The reversal of 1277876387876 is 6787836787721.

It is a junction number, because it is equal to n+sod(n) for n = 1277876387797 and 1277876387806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337703285 + ... + 337707068.

It is an arithmetic number, because the mean of its divisors is an integer number (104013194516).

Almost surely, 2^{1277876387876} is an apocalyptic number.

It is an amenable number.

1277876387876 is a deficient number, since it is larger than the sum of its proper divisors (1218440280508).

1277876387876 is a wasteful number, since it uses less digits than its factorization.

1277876387876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675410411 (or 675410409 counting only the distinct ones).

The product of its digits is 1858719744, while the sum is 77.

The spelling of 1277876387876 in words is "one trillion, two hundred seventy-seven billion, eight hundred seventy-six million, three hundred eighty-seven thousand, eight hundred seventy-six".