126231342606634 has 12 divisors (see below), whose sum is σ = 189469814140386. Its totient is φ = 63074764405992.

The previous prime is 126231342606631. The next prime is 126231342606661. The reversal of 126231342606634 is 436606243132621.

It can be written as a sum of positive squares in only one way, i.e., 90665684553609 + 35565658053025 = 9521853^2 + 5963695^2 .

It is not an unprimeable number, because it can be changed into a prime (126231342606631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8493169 + ... + 18016564.

Almost surely, 2^{126231342606634} is an apocalyptic number.

126231342606634 is a deficient number, since it is larger than the sum of its proper divisors (63238471533752).

126231342606634 is an frugal number, since it uses more digits than its factorization.

126231342606634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26512821 (or 26511278 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 126231342606634 in words is "one hundred twenty-six trillion, two hundred thirty-one billion, three hundred forty-two million, six hundred six thousand, six hundred thirty-four".