126278815025 has 12 divisors (see below), whose sum is σ = 170820797424. Its totient is φ = 91839138000.

The previous prime is 126278815001. The next prime is 126278815057. The reversal of 126278815025 is 520518872621.

It is not a de Polignac number, because 126278815025 - 2¹² = 126278810929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229597571 + ... + 229598120.

It is an arithmetic number, because the mean of its divisors is an integer number (14235066452).

Almost surely, 2^126278815025 is an apocalyptic number.

It is an amenable number.

126278815025 is a deficient number, since it is larger than the sum of its proper divisors (44541982399).

126278815025 is a wasteful number, since it uses less digits than its factorization.

126278815025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459195712 (or 459195707 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 126278815025 in words is "one hundred twenty-six billion, two hundred seventy-eight million, eight hundred fifteen thousand, twenty-five".