125891467890 has 32 divisors (see below), whose sum is σ = 308568026880. Its totient is φ = 32856779904.

The previous prime is 125891467747. The next prime is 125891467913. The reversal of 125891467890 is 98764198521.

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 in 15 ways as a sum of consecutive naturals, for example, 44640955 + ... + 44643774.

It is an arithmetic number, because the mean of its divisors is an integer number (9642750840).

Almost surely, 2^125891467890 is an apocalyptic number.

125891467890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125891467890 is an abundant number, since it is smaller than the sum of its proper divisors (182676558990).

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

125891467890 is a wasteful number, since it uses less digits than its factorization.

125891467890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89284786.

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 125891467890 in words is "one hundred twenty-five billion, eight hundred ninety-one million, four hundred sixty-seven thousand, eight hundred ninety".