126725745069 has 96 divisors (see below), whose sum is σ = 244575811584. Its totient is φ = 61267155840.

The previous prime is 126725745067. The next prime is 126725745137. The reversal of 126725745069 is 960547527621.

It is a happy number.

126725745069 is a `hidden beast` number, since 1 + 2 + 6 + 7 + 2 + 574 + 5 + 0 + 69 = 666.

It is not a de Polignac number, because 126725745069 - 2¹ = 126725745067 is a prime.

It is a super-2 number, since 2×126725745069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126725745067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 482302 + ... + 697184.

It is an arithmetic number, because the mean of its divisors is an integer number (2547664704).

Almost surely, 2^126725745069 is an apocalyptic number.

It is an amenable number.

126725745069 is a deficient number, since it is larger than the sum of its proper divisors (117850066515).

126725745069 is a wasteful number, since it uses less digits than its factorization.

126725745069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214967 (or 214964 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 126725745069 in words is "one hundred twenty-six billion, seven hundred twenty-five million, seven hundred forty-five thousand, sixty-nine".