3120129678 has 16 divisors (see below), whose sum is σ = 6250156416. Its totient is φ = 1038393720.

The previous prime is 3120129647. The next prime is 3120129689. The reversal of 3120129678 is 8769210213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408276 + ... + 415847.

It is an arithmetic number, because the mean of its divisors is an integer number (390634776).

Almost surely, 2^3120129678 is an apocalyptic number.

3120129678 is an abundant number, since it is smaller than the sum of its proper divisors (3130026738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3120129678 is a wasteful number, since it uses less digits than its factorization.

3120129678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824759.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 3120129678 is about 55858.1209673222. The cubic root of 3120129678 is about 1461.2489591066.

The spelling of 3120129678 in words is "three billion, one hundred twenty million, one hundred twenty-nine thousand, six hundred seventy-eight".