140647883868 has 72 divisors (see below), whose sum is σ = 369208869120. Its totient is φ = 46817190000.

The previous prime is 140647883863. The next prime is 140647883869. The reversal of 140647883868 is 868388746041.

140647883868 is a `hidden beast` number, since 1 + 4 + 0 + 6 + 478 + 83 + 86 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140647883863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598243 + ... + 799493.

It is an arithmetic number, because the mean of its divisors is an integer number (5127900960).

Almost surely, 2^140647883868 is an apocalyptic number.

140647883868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140647883868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184604434560).

140647883868 is an abundant number, since it is smaller than the sum of its proper divisors (228560985252).

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

140647883868 is a wasteful number, since it uses less digits than its factorization.

140647883868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201989 (or 201975 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 63.

The spelling of 140647883868 in words is "one hundred forty billion, six hundred forty-seven million, eight hundred eighty-three thousand, eight hundred sixty-eight".