125478041578 has 4 divisors (see below), whose sum is σ = 188217062370. Its totient is φ = 62739020788.

The previous prime is 125478041567. The next prime is 125478041587. The reversal of 125478041578 is 875140874521.

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

It can be written as a sum of positive squares in only one way, i.e., 124575820209 + 902221369 = 352953^2 + 30037^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31369510393 + ... + 31369510396.

Almost surely, 2^125478041578 is an apocalyptic number.

125478041578 is a deficient number, since it is larger than the sum of its proper divisors (62739020792).

125478041578 is an equidigital number, since it uses as much as digits as its factorization.

125478041578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62739020791.

The product of its (nonzero) digits is 2508800, while the sum is 52.

The spelling of 125478041578 in words is "one hundred twenty-five billion, four hundred seventy-eight million, forty-one thousand, five hundred seventy-eight".