1277876387874 has 16 divisors (see below), whose sum is σ = 2579200050240. Its totient is φ = 422050916880.

The previous prime is 1277876387861. The next prime is 1277876387881. The reversal of 1277876387874 is 4787836787721.

It is a junction number, because it is equal to n+sod(n) for n = 1277876387796 and 1277876387805.

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, 976969062 + ... + 976970369.

It is an arithmetic number, because the mean of its divisors is an integer number (161200003140).

Almost surely, 2^{1277876387874} is an apocalyptic number.

1277876387874 is an abundant number, since it is smaller than the sum of its proper divisors (1301323662366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1277876387874 is a wasteful number, since it uses less digits than its factorization.

1277876387874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953939545.

The product of its digits is 1239146496, while the sum is 75.

The spelling of 1277876387874 in words is "one trillion, two hundred seventy-seven billion, eight hundred seventy-six million, three hundred eighty-seven thousand, eight hundred seventy-four".