126941287716 has 18 divisors (see below), whose sum is σ = 320879366262. Its totient is φ = 42313762560.

The previous prime is 126941287703. The next prime is 126941287717. The reversal of 126941287716 is 617782149621.

It can be written as a sum of positive squares in only one way, i.e., 88151985216 + 38789302500 = 296904^2 + 196950^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×126941287716² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (126941287717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1763073405 + ... + 1763073476.

It is an arithmetic number, because the mean of its divisors is an integer number (17826631459).

Almost surely, 2^126941287716 is an apocalyptic number.

It is an amenable number.

126941287716 is an abundant number, since it is smaller than the sum of its proper divisors (193938078546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126941287716 is a wasteful number, since it uses less digits than its factorization.

126941287716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526146891 (or 3526146886 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

It can be divided in two parts, 1269412 and 87716, that added together give a triangular number (1357128 = T₁₆₄₇).

The spelling of 126941287716 in words is "one hundred twenty-six billion, nine hundred forty-one million, two hundred eighty-seven thousand, seven hundred sixteen".