126787165210 has 32 divisors (see below), whose sum is σ = 230860400400. Its totient is φ = 50127813120.

The previous prime is 126787165201. The next prime is 126787165321. The reversal of 126787165210 is 12561787621.

It can be written as a sum of positive squares in 8 ways, for example, as 57959118009 + 68828047201 = 240747^2 + 262351^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2744100 + ... + 2789920.

Almost surely, 2^126787165210 is an apocalyptic number.

126787165210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126787165210 is a deficient number, since it is larger than the sum of its proper divisors (104073235190).

126787165210 is a wasteful number, since it uses less digits than its factorization.

126787165210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49026.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 126787165210 in words is "one hundred twenty-six billion, seven hundred eighty-seven million, one hundred sixty-five thousand, two hundred ten".