126765242785 has 8 divisors (see below), whose sum is σ = 158732130240. Its totient is φ = 97002968304.

The previous prime is 126765242767. The next prime is 126765242789. The reversal of 126765242785 is 587242567621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126765242785 - 2¹³ = 126765234593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126765242789) 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 7 ways as a sum of consecutive naturals, for example, 551153115 + ... + 551153344.

It is an arithmetic number, because the mean of its divisors is an integer number (19841516280).

Almost surely, 2^126765242785 is an apocalyptic number.

It is an amenable number.

126765242785 is a deficient number, since it is larger than the sum of its proper divisors (31966887455).

126765242785 is a wasteful number, since it uses less digits than its factorization.

126765242785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102306487.

The product of its digits is 11289600, while the sum is 55.

The spelling of 126765242785 in words is "one hundred twenty-six billion, seven hundred sixty-five million, two hundred forty-two thousand, seven hundred eighty-five".