1643415025412 has 12 divisors (see below), whose sum is σ = 2902361398860. Its totient is φ = 814168911456.

The previous prime is 1643415025409. The next prime is 1643415025523. The reversal of 1643415025412 is 2145205143461.

It can be written as a sum of positive squares in 2 ways, for example, as 446456494276 + 1196958531136 = 668174^2 + 1094056^2 .

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, 1884649823 + ... + 1884650694.

It is an arithmetic number, because the mean of its divisors is an integer number (241863449905).

Almost surely, 2^{1643415025412} is an apocalyptic number.

It is an amenable number.

1643415025412 is a deficient number, since it is larger than the sum of its proper divisors (1258946373448).

1643415025412 is a wasteful number, since it uses less digits than its factorization.

1643415025412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769300630 (or 3769300628 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 1643415025412 in words is "one trillion, six hundred forty-three billion, four hundred fifteen million, twenty-five thousand, four hundred twelve".