139705205493 has 8 divisors (see below), whose sum is σ = 212884122688. Its totient is φ = 79831545984.

The previous prime is 139705205489. The next prime is 139705205513. The reversal of 139705205493 is 394502507931.

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

It is not a de Polignac number, because 139705205493 - 2² = 139705205489 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 (139705205483) 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, 3326314396 + ... + 3326314437.

It is an arithmetic number, because the mean of its divisors is an integer number (26610515336).

Almost surely, 2^139705205493 is an apocalyptic number.

It is an amenable number.

139705205493 is a deficient number, since it is larger than the sum of its proper divisors (73178917195).

139705205493 is an equidigital number, since it uses as much as digits as its factorization.

139705205493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652628843.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 139705205493 in words is "one hundred thirty-nine billion, seven hundred five million, two hundred five thousand, four hundred ninety-three".