140685820799 has 4 divisors (see below), whose sum is σ = 140688406320. Its totient is φ = 140683235280.

The previous prime is 140685820747. The next prime is 140685820831. The reversal of 140685820799 is 997028586041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997028586041 = 19 ⋅52475188739.

It is a cyclic number.

It is not a de Polignac number, because 140685820799 - 2⁸ = 140685820543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140685823799) 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, 1209347 + ... + 1320564.

It is an arithmetic number, because the mean of its divisors is an integer number (35172101580).

Almost surely, 2^140685820799 is an apocalyptic number.

140685820799 is a deficient number, since it is larger than the sum of its proper divisors (2585521).

140685820799 is an equidigital number, since it uses as much as digits as its factorization.

140685820799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585520.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 140685820799 in words is "one hundred forty billion, six hundred eighty-five million, eight hundred twenty thousand, seven hundred ninety-nine".