139721408899 has 16 divisors (see below), whose sum is σ = 141594019840. Its totient is φ = 137859732000.

The previous prime is 139721408873. The next prime is 139721408903. The reversal of 139721408899 is 998804127931.

It is not a de Polignac number, because 139721408899 - 2³³ = 131131474307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139721408809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37669057 + ... + 37672765.

It is an arithmetic number, because the mean of its divisors is an integer number (8849626240).

Almost surely, 2^139721408899 is an apocalyptic number.

139721408899 is a deficient number, since it is larger than the sum of its proper divisors (1872610941).

139721408899 is a wasteful number, since it uses less digits than its factorization.

139721408899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 139721408899 in words is "one hundred thirty-nine billion, seven hundred twenty-one million, four hundred eight thousand, eight hundred ninety-nine".