126877861623 has 16 divisors (see below), whose sum is σ = 170272323936. Its totient is φ = 84035548800.

The previous prime is 126877861619. The next prime is 126877861697. The reversal of 126877861623 is 326168778621.

It is not a de Polignac number, because 126877861623 - 2² = 126877861619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126877861603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261165 + ... + 567417.

It is an arithmetic number, because the mean of its divisors is an integer number (10642020246).

Almost surely, 2^126877861623 is an apocalyptic number.

126877861623 is a deficient number, since it is larger than the sum of its proper divisors (43394462313).

126877861623 is a wasteful number, since it uses less digits than its factorization.

126877861623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307154.

The product of its digits is 8128512, while the sum is 57.

The spelling of 126877861623 in words is "one hundred twenty-six billion, eight hundred seventy-seven million, eight hundred sixty-one thousand, six hundred twenty-three".