825420137118 has 16 divisors (see below), whose sum is σ = 1673454525456. Its totient is φ = 271371003840.

The previous prime is 825420137089. The next prime is 825420137137. The reversal of 825420137118 is 811731024528.

It is a self number, because there is not a number n which added to its sum of digits gives 825420137118.

It is a congruent number.

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, 942259993 + ... + 942260868.

It is an arithmetic number, because the mean of its divisors is an integer number (104590907841).

Almost surely, 2^825420137118 is an apocalyptic number.

825420137118 is an abundant number, since it is smaller than the sum of its proper divisors (848034388338).

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

825420137118 is a wasteful number, since it uses less digits than its factorization.

825420137118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884520939.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 825420137118 in words is "eight hundred twenty-five billion, four hundred twenty million, one hundred thirty-seven thousand, one hundred eighteen".