126381176071 has 4 divisors (see below), whose sum is σ = 129070137312. Its totient is φ = 123692214832.

The previous prime is 126381176011. The next prime is 126381176083. The reversal of 126381176071 is 170671183621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170671183621 = 463 ⋅368620267.

It is a cyclic number.

It is not a de Polignac number, because 126381176071 - 2¹⁵ = 126381143303 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 (126381176011) 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, 1344480550 + ... + 1344480643.

It is an arithmetic number, because the mean of its divisors is an integer number (32267534328).

Almost surely, 2^126381176071 is an apocalyptic number.

126381176071 is a deficient number, since it is larger than the sum of its proper divisors (2688961241).

126381176071 is an equidigital number, since it uses as much as digits as its factorization.

126381176071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688961240.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 126381176071 in words is "one hundred twenty-six billion, three hundred eighty-one million, one hundred seventy-six thousand, seventy-one".