139351311999646 has 8 divisors (see below), whose sum is σ = 209027764350504. Its totient is φ = 69675390549480.

The previous prime is 139351311999593. The next prime is 139351311999661. The reversal of 139351311999646 is 646999113153931.

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

It is a super-2 number, since 2×139351311999646² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132068320 + ... + 133119283.

It is an arithmetic number, because the mean of its divisors is an integer number (26128470543813).

Almost surely, 2^{139351311999646} is an apocalyptic number.

139351311999646 is a deficient number, since it is larger than the sum of its proper divisors (69676452350858).

139351311999646 is a wasteful number, since it uses less digits than its factorization.

139351311999646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265450346.

The product of its digits is 127545840, while the sum is 70.

The spelling of 139351311999646 in words is "one hundred thirty-nine trillion, three hundred fifty-one billion, three hundred eleven million, nine hundred ninety-nine thousand, six hundred forty-six".