126275138650 has 12 divisors (see below), whose sum is σ = 234871757982. Its totient is φ = 50510055440.

The previous prime is 126275138623. The next prime is 126275138657. The reversal of 126275138650 is 56831572621.

It can be written as a sum of positive squares in 3 ways, for example, as 99427333041 + 26847805609 = 315321^2 + 163853^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126275138650.

It is not an unprimeable number, because it can be changed into a prime (126275138657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262751337 + ... + 1262751436.

Almost surely, 2^126275138650 is an apocalyptic number.

126275138650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126275138650 is a deficient number, since it is larger than the sum of its proper divisors (108596619332).

126275138650 is a wasteful number, since it uses less digits than its factorization.

126275138650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525502785 (or 2525502780 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 126275138650 in words is "one hundred twenty-six billion, two hundred seventy-five million, one hundred thirty-eight thousand, six hundred fifty".