140435456399 has 8 divisors (see below), whose sum is σ = 162055895040. Its totient is φ = 119204575416.

The previous prime is 140435456393. The next prime is 140435456411. The reversal of 140435456399 is 993654534041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140435456399 - 2²⁴ = 140418679183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140435456399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140435456393) 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, 97388639 + ... + 97390080.

It is an arithmetic number, because the mean of its divisors is an integer number (20256986880).

Almost surely, 2^140435456399 is an apocalyptic number.

140435456399 is a deficient number, since it is larger than the sum of its proper divisors (21620438641).

140435456399 is a wasteful number, since it uses less digits than its factorization.

140435456399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194778829.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 140435456399 in words is "one hundred forty billion, four hundred thirty-five million, four hundred fifty-six thousand, three hundred ninety-nine".