139609308797 has 16 divisors (see below), whose sum is σ = 160219036800. Its totient is φ = 119166371520.

The previous prime is 139609308793. The next prime is 139609308829. The reversal of 139609308797 is 797803906931.

It is not a de Polignac number, because 139609308797 - 2² = 139609308793 is a prime.

It is a super-2 number, since 2×139609308797² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139609308793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4467854 + ... + 4498992.

It is an arithmetic number, because the mean of its divisors is an integer number (10013689800).

Almost surely, 2^139609308797 is an apocalyptic number.

It is an amenable number.

139609308797 is a deficient number, since it is larger than the sum of its proper divisors (20609728003).

139609308797 is a wasteful number, since it uses less digits than its factorization.

139609308797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33796.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 139609308797 in words is "one hundred thirty-nine billion, six hundred nine million, three hundred eight thousand, seven hundred ninety-seven".