3146747478 has 32 divisors (see below), whose sum is σ = 7345603584. Its totient is φ = 879940992.

The previous prime is 3146747441. The next prime is 3146747497. The reversal of 3146747478 is 8747476413.

It is a self number, because there is not a number n which added to its sum of digits gives 3146747478.

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 15 ways as a sum of consecutive naturals, for example, 795075 + ... + 799022.

It is an arithmetic number, because the mean of its divisors is an integer number (229550112).

Almost surely, 2^3146747478 is an apocalyptic number.

3146747478 is an abundant number, since it is smaller than the sum of its proper divisors (4198856106).

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

3146747478 is a wasteful number, since it uses less digits than its factorization.

3146747478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594156.

The product of its digits is 3161088, while the sum is 51.

The square root of 3146747478 is about 56095.8775490677. The cubic root of 3146747478 is about 1465.3924993674.

The spelling of 3146747478 in words is "three billion, one hundred forty-six million, seven hundred forty-seven thousand, four hundred seventy-eight".