126678682877 has 2 divisors, whose sum is σ = 126678682878. Its totient is φ = 126678682876.

The previous prime is 126678682783. The next prime is 126678682951. The reversal of 126678682877 is 778286876621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124708565881 + 1970116996 = 353141^2 + 44386^2 .

It is a cyclic number.

It is not a de Polignac number, because 126678682877 - 2²² = 126674488573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126678682477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63339341438 + 63339341439.

It is an arithmetic number, because the mean of its divisors is an integer number (63339341439).

Almost surely, 2^126678682877 is an apocalyptic number.

It is an amenable number.

126678682877 is a deficient number, since it is larger than the sum of its proper divisors (1).

126678682877 is an equidigital number, since it uses as much as digits as its factorization.

126678682877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151732224, while the sum is 68.

The spelling of 126678682877 in words is "one hundred twenty-six billion, six hundred seventy-eight million, six hundred eighty-two thousand, eight hundred seventy-seven".