140557427868 has 192 divisors, whose sum is σ = 411867638784. Its totient is φ = 36689664000.

The previous prime is 140557427861. The next prime is 140557427917. The reversal of 140557427868 is 868724755041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140557427861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1574758 + ... + 1661618.

It is an arithmetic number, because the mean of its divisors is an integer number (2145143952).

Almost surely, 2^140557427868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140557427868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205933819392).

140557427868 is an abundant number, since it is smaller than the sum of its proper divisors (271310210916).

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

140557427868 is a wasteful number, since it uses less digits than its factorization.

140557427868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86956 (or 86954 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 57.

The spelling of 140557427868 in words is "one hundred forty billion, five hundred fifty-seven million, four hundred twenty-seven thousand, eight hundred sixty-eight".