1277640126514 has 16 divisors (see below), whose sum is σ = 2001460897152. Its totient is φ = 610533059488.

The previous prime is 1277640126479. The next prime is 1277640126533. The reversal of 1277640126514 is 4156210467721.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11585854 + ... + 11695609.

It is an arithmetic number, because the mean of its divisors is an integer number (125091306072).

Almost surely, 2^{1277640126514} is an apocalyptic number.

1277640126514 is a deficient number, since it is larger than the sum of its proper divisors (723820770638).

1277640126514 is a wasteful number, since it uses less digits than its factorization.

1277640126514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23282681.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 1277640126514 in words is "one trillion, two hundred seventy-seven billion, six hundred forty million, one hundred twenty-six thousand, five hundred fourteen".