140686236589 has 4 divisors (see below), whose sum is σ = 140687638560. Its totient is φ = 140684834620.

The previous prime is 140686236577. The next prime is 140686236629. The reversal of 140686236589 is 985632686041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140686236589 - 2⁵ = 140686236557 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140686206589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537799 + ... + 755380.

It is an arithmetic number, because the mean of its divisors is an integer number (35171909640).

Almost surely, 2^140686236589 is an apocalyptic number.

It is an amenable number.

140686236589 is a deficient number, since it is larger than the sum of its proper divisors (1401971).

140686236589 is a wasteful number, since it uses less digits than its factorization.

140686236589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401970.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 140686236589 in words is "one hundred forty billion, six hundred eighty-six million, two hundred thirty-six thousand, five hundred eighty-nine".