139446705736449 has 12 divisors (see below), whose sum is σ = 201428154450900. Its totient is φ = 92962100466144.

The previous prime is 139446705736421. The next prime is 139446705736487. The reversal of 139446705736449 is 944637507644931.

It is a happy number.

139446705736449 is a `hidden beast` number, since 1 + 3 + 9 + 4 + 4 + 6 + 7 + 0 + 573 + 6 + 4 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101916293529600 + 37530412206849 = 10095360^2 + 6126207^2 .

It is not a de Polignac number, because 139446705736449 - 2¹⁷ = 139446705605377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139446705736489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197129394 + ... + 197835515.

It is an arithmetic number, because the mean of its divisors is an integer number (16785679537575).

Almost surely, 2^{139446705736449} is an apocalyptic number.

It is an amenable number.

139446705736449 is a deficient number, since it is larger than the sum of its proper divisors (61981448714451).

139446705736449 is a wasteful number, since it uses less digits than its factorization.

139446705736449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395004144 (or 395004141 counting only the distinct ones).

The product of its (nonzero) digits is 1646023680, while the sum is 72.

The spelling of 139446705736449 in words is "one hundred thirty-nine trillion, four hundred forty-six billion, seven hundred five million, seven hundred thirty-six thousand, four hundred forty-nine".