126130350636578 has 8 divisors (see below), whose sum is σ = 189359615746668. Its totient is φ = 63010478721024.

The previous prime is 126130350636557. The next prime is 126130350636637. The reversal of 126130350636578 is 875636053031621.

It can be written as a sum of positive squares in 2 ways, for example, as 119219167075009 + 6911183561569 = 10918753^2 + 2628913^2 .

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

It is a super-2 number, since 2×126130350636578² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27348295751 + ... + 27348300362.

Almost surely, 2^{126130350636578} is an apocalyptic number.

126130350636578 is a deficient number, since it is larger than the sum of its proper divisors (63229265110090).

126130350636578 is a wasteful number, since it uses less digits than its factorization.

126130350636578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54696597268.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 126130350636578 in words is "one hundred twenty-six trillion, one hundred thirty billion, three hundred fifty million, six hundred thirty-six thousand, five hundred seventy-eight".