125311954378 has 16 divisors (see below), whose sum is σ = 214334474760. Its totient is φ = 54434151936.

The previous prime is 125311954367. The next prime is 125311954477. The reversal of 125311954378 is 873459113521.

It can be written as a sum of positive squares in 4 ways, for example, as 102788848449 + 22523105929 = 320607^2 + 150077^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141755163 + ... + 141756046.

Almost surely, 2^125311954378 is an apocalyptic number.

125311954378 is a deficient number, since it is larger than the sum of its proper divisors (89022520382).

125311954378 is a wasteful number, since it uses less digits than its factorization.

125311954378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283511241.

The product of its digits is 907200, while the sum is 49.

The spelling of 125311954378 in words is "one hundred twenty-five billion, three hundred eleven million, nine hundred fifty-four thousand, three hundred seventy-eight".