126567204479 has 4 divisors (see below), whose sum is σ = 126584434200. Its totient is φ = 126549974760.

The previous prime is 126567204473. The next prime is 126567204487. The reversal of 126567204479 is 974402765621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126567204479 is a prime.

It is a super-2 number, since 2×126567204479² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126567204479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126567204473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8603837 + ... + 8618534.

It is an arithmetic number, because the mean of its divisors is an integer number (31646108550).

Almost surely, 2^126567204479 is an apocalyptic number.

126567204479 is a deficient number, since it is larger than the sum of its proper divisors (17229721).

126567204479 is an equidigital number, since it uses as much as digits as its factorization.

126567204479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17229720.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 126567204479 in words is "one hundred twenty-six billion, five hundred sixty-seven million, two hundred four thousand, four hundred seventy-nine".