126629955523 has 8 divisors (see below), whose sum is σ = 128220397200. Its totient is φ = 125045329920.

The previous prime is 126629955509. The next prime is 126629955583. The reversal of 126629955523 is 325559926621.

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 126629955523 - 2¹³ = 126629947331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126629955503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410193 + ... + 1497298.

It is an arithmetic number, because the mean of its divisors is an integer number (16027549650).

Almost surely, 2^126629955523 is an apocalyptic number.

126629955523 is a deficient number, since it is larger than the sum of its proper divisors (1590441677).

126629955523 is an equidigital number, since it uses as much as digits as its factorization.

126629955523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908037.

The product of its digits is 8748000, while the sum is 55.

The spelling of 126629955523 in words is "one hundred twenty-six billion, six hundred twenty-nine million, nine hundred fifty-five thousand, five hundred twenty-three".