126950351812385 has 4 divisors (see below), whose sum is σ = 152340422174868. Its totient is φ = 101560281449904.

The previous prime is 126950351812369. The next prime is 126950351812391. The reversal of 126950351812385 is 583218153059621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21205573712401 + 105744778099984 = 4604951^2 + 10283228^2 .

It is a cyclic number.

It is not a de Polignac number, because 126950351812385 - 2⁴ = 126950351812369 is a prime.

It is a super-2 number, since 2×126950351812385² (a number of 29 digits) contains 22 as substring.

It is a Duffinian 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, 12695035181234 + ... + 12695035181243.

It is an arithmetic number, because the mean of its divisors is an integer number (38085105543717).

Almost surely, 2^{126950351812385} is an apocalyptic number.

It is an amenable number.

126950351812385 is a deficient number, since it is larger than the sum of its proper divisors (25390070362483).

126950351812385 is an equidigital number, since it uses as much as digits as its factorization.

126950351812385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25390070362482.

The product of its (nonzero) digits is 15552000, while the sum is 59.

The spelling of 126950351812385 in words is "one hundred twenty-six trillion, nine hundred fifty billion, three hundred fifty-one million, eight hundred twelve thousand, three hundred eighty-five".