140261287008 has 96 divisors (see below), whose sum is σ = 370381455360. Its totient is φ = 46475325440.

The previous prime is 140261287007. The next prime is 140261287039. The reversal of 140261287008 is 800782162041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140261287007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48717313 + ... + 48720191.

It is an arithmetic number, because the mean of its divisors is an integer number (3858140160).

Almost surely, 2^140261287008 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 140261287008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185190727680).

140261287008 is an abundant number, since it is smaller than the sum of its proper divisors (230120168352).

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

140261287008 is a wasteful number, since it uses less digits than its factorization.

140261287008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740 (or 5732 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 140261287008 in words is "one hundred forty billion, two hundred sixty-one million, two hundred eighty-seven thousand, eight".