126375770671 has 4 divisors (see below), whose sum is σ = 133809639552. Its totient is φ = 118941901792.

The previous prime is 126375770641. The next prime is 126375770681. The reversal of 126375770671 is 176077573621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176077573621 = 1811 ⋅97226711.

It is a cyclic number.

It is not a de Polignac number, because 126375770671 - 2¹³ = 126375762479 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 (126375770611) 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, 3716934415 + ... + 3716934448.

It is an arithmetic number, because the mean of its divisors is an integer number (33452409888).

Almost surely, 2^126375770671 is an apocalyptic number.

126375770671 is a deficient number, since it is larger than the sum of its proper divisors (7433868881).

126375770671 is an equidigital number, since it uses as much as digits as its factorization.

126375770671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433868880.

The product of its (nonzero) digits is 2593080, while the sum is 52.

The spelling of 126375770671 in words is "one hundred twenty-six billion, three hundred seventy-five million, seven hundred seventy thousand, six hundred seventy-one".