125105578998 has 8 divisors (see below), whose sum is σ = 250211158008. Its totient is φ = 41701859664.

The previous prime is 125105578993. The next prime is 125105579029. The reversal of 125105578998 is 899875501521.

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

125105578998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125105578993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10425464911 + ... + 10425464922.

It is an arithmetic number, because the mean of its divisors is an integer number (31276394751).

Almost surely, 2^125105578998 is an apocalyptic number.

125105578998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125105578998 is a wasteful number, since it uses less digits than its factorization.

125105578998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20850929838.

The product of its (nonzero) digits is 9072000, while the sum is 60.

The spelling of 125105578998 in words is "one hundred twenty-five billion, one hundred five million, five hundred seventy-eight thousand, nine hundred ninety-eight".