2678382129709 has 32 divisors (see below), whose sum is σ = 3419089551360. Its totient is φ = 2060611876800.

The previous prime is 2678382129673. The next prime is 2678382129719. The reversal of 2678382129709 is 9079212838762.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2678382129709 - 2³³ = 2669792195117 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 (2678382129719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15815557 + ... + 15984010.

It is an arithmetic number, because the mean of its divisors is an integer number (106846548480).

Almost surely, 2^{2678382129709} is an apocalyptic number.

It is an amenable number.

2678382129709 is a deficient number, since it is larger than the sum of its proper divisors (740707421651).

2678382129709 is a wasteful number, since it uses less digits than its factorization.

2678382129709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31799641.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 2678382129709 in words is "two trillion, six hundred seventy-eight billion, three hundred eighty-two million, one hundred twenty-nine thousand, seven hundred nine".