1277667664052 has 24 divisors (see below), whose sum is σ = 2441826398592. Its totient is φ = 581387234400.

The previous prime is 1277667664037. The next prime is 1277667664061. The reversal of 1277667664052 is 2504667667721.

It is a junction number, because it is equal to n+sod(n) for n = 1277667663982 and 1277667664000.

It is a congruent number.

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, 173028224 + ... + 173035607.

It is an arithmetic number, because the mean of its divisors is an integer number (101742766608).

Almost surely, 2^{1277667664052} is an apocalyptic number.

It is an amenable number.

1277667664052 is a deficient number, since it is larger than the sum of its proper divisors (1164158734540).

1277667664052 is a wasteful number, since it uses less digits than its factorization.

1277667664052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346063919 (or 346063917 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 59.

The spelling of 1277667664052 in words is "one trillion, two hundred seventy-seven billion, six hundred sixty-seven million, six hundred sixty-four thousand, fifty-two".