126404526265 has 8 divisors (see below), whose sum is σ = 151932882888. Its totient is φ = 100958653440.

The previous prime is 126404526251. The next prime is 126404526319. The reversal of 126404526265 is 562625404621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1068701481 + 125335824784 = 32691^2 + 354028^2 .

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

It is not a de Polignac number, because 126404526265 - 2¹³ = 126404518073 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 20617576 + ... + 20623705.

It is an arithmetic number, because the mean of its divisors is an integer number (18991610361).

Almost surely, 2^126404526265 is an apocalyptic number.

It is an amenable number.

126404526265 is a deficient number, since it is larger than the sum of its proper divisors (25528356623).

126404526265 is an equidigital number, since it uses as much as digits as its factorization.

126404526265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41241899.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 126404526265 in words is "one hundred twenty-six billion, four hundred four million, five hundred twenty-six thousand, two hundred sixty-five".