126129790208594 has 4 divisors (see below), whose sum is σ = 189194685312894. Its totient is φ = 63064895104296.

The previous prime is 126129790208573. The next prime is 126129790208621. The reversal of 126129790208594 is 495802097921621.

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

It can be written as a sum of positive squares in only one way, i.e., 112827627541225 + 13302162667369 = 10622035^2 + 3647213^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126129790208594.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31532447552147 + ... + 31532447552150.

Almost surely, 2^{126129790208594} is an apocalyptic number.

126129790208594 is a deficient number, since it is larger than the sum of its proper divisors (63064895104300).

126129790208594 is an equidigital number, since it uses as much as digits as its factorization.

126129790208594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63064895104299.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 126129790208594 in words is "one hundred twenty-six trillion, one hundred twenty-nine billion, seven hundred ninety million, two hundred eight thousand, five hundred ninety-four".