125918554830 has 128 divisors (see below), whose sum is σ = 309264569856. Its totient is φ = 32804352000.

The previous prime is 125918554829. The next prime is 125918554831. The reversal of 125918554830 is 38455819521.

It is an interprime number because it is at equal distance from previous prime (125918554829) and next prime (125918554831).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125918554831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119807805 + ... + 119808855.

It is an arithmetic number, because the mean of its divisors is an integer number (2416129452).

Almost surely, 2^125918554830 is an apocalyptic number.

125918554830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125918554830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154632284928).

125918554830 is an abundant number, since it is smaller than the sum of its proper divisors (183346015026).

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

125918554830 is a wasteful number, since it uses less digits than its factorization.

125918554830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602.

The product of its (nonzero) digits is 1728000, while the sum is 51.

The spelling of 125918554830 in words is "one hundred twenty-five billion, nine hundred eighteen million, five hundred fifty-four thousand, eight hundred thirty".