140427786844 has 24 divisors (see below), whose sum is σ = 251077333248. Its totient is φ = 68692596720.

The previous prime is 140427786841. The next prime is 140427786857. The reversal of 140427786844 is 448687724041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140427786841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328267 + ... + 623389.

It is an arithmetic number, because the mean of its divisors is an integer number (10461555552).

Almost surely, 2^140427786844 is an apocalyptic number.

It is an amenable number.

140427786844 is a deficient number, since it is larger than the sum of its proper divisors (110649546404).

140427786844 is a wasteful number, since it uses less digits than its factorization.

140427786844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297705 (or 297703 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 55.

The spelling of 140427786844 in words is "one hundred forty billion, four hundred twenty-seven million, seven hundred eighty-six thousand, eight hundred forty-four".