126678463277 has 4 divisors (see below), whose sum is σ = 126883114080. Its totient is φ = 126473812476.

The previous prime is 126678463267. The next prime is 126678463363. The reversal of 126678463277 is 772364876621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 772364876621 = 13 ⋅59412682817.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126678463277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126678463217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102324473 + ... + 102325710.

It is an arithmetic number, because the mean of its divisors is an integer number (31720778520).

Almost surely, 2^126678463277 is an apocalyptic number.

It is an amenable number.

126678463277 is a deficient number, since it is larger than the sum of its proper divisors (204650803).

126678463277 is an equidigital number, since it uses as much as digits as its factorization.

126678463277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204650802.

The product of its digits is 28449792, while the sum is 59.

The spelling of 126678463277 in words is "one hundred twenty-six billion, six hundred seventy-eight million, four hundred sixty-three thousand, two hundred seventy-seven".