1277412631012 has 24 divisors (see below), whose sum is σ = 2580120567360. Its totient is φ = 542042133600.

The previous prime is 1277412631009. The next prime is 1277412631049. The reversal of 1277412631012 is 2101362147721.

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, 225848062 + ... + 225853717.

It is an arithmetic number, because the mean of its divisors is an integer number (107505023640).

Almost surely, 2^{1277412631012} is an apocalyptic number.

It is an amenable number.

1277412631012 is an abundant number, since it is smaller than the sum of its proper divisors (1302707936348).

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

1277412631012 is a wasteful number, since it uses less digits than its factorization.

1277412631012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451701891 (or 451701889 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

Adding to 1277412631012 its reverse (2101362147721), we get a palindrome (3378774778733).

The spelling of 1277412631012 in words is "one trillion, two hundred seventy-seven billion, four hundred twelve million, six hundred thirty-one thousand, twelve".