140040377789 has 4 divisors (see below), whose sum is σ = 150812714556. Its totient is φ = 129268041024.

The previous prime is 140040377783. The next prime is 140040377791. The reversal of 140040377789 is 987773040041.

140040377789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18901575289 + 121138802500 = 137483^2 + 348050^2 .

It is a cyclic number.

It is not a de Polignac number, because 140040377789 - 2²⁴ = 140023600573 is a prime.

It is a super-2 number, since 2×140040377789² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140040377783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5386168364 + ... + 5386168389.

It is an arithmetic number, because the mean of its divisors is an integer number (37703178639).

Almost surely, 2^140040377789 is an apocalyptic number.

It is an amenable number.

140040377789 is a deficient number, since it is larger than the sum of its proper divisors (10772336767).

140040377789 is a wasteful number, since it uses less digits than its factorization.

140040377789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772336766.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 140040377789 in words is "one hundred forty billion, forty million, three hundred seventy-seven thousand, seven hundred eighty-nine".