43209000004 has 6 divisors (see below), whose sum is σ = 75615750014. Its totient is φ = 21604500000.

The previous prime is 43208999989. The next prime is 43209000019. The reversal of 43209000004 is 40000090234.

It is an interprime number because it is at equal distance from previous prime (43208999989) and next prime (43209000019).

It can be written as a sum of positive squares in only one way, i.e., 40437188100 + 2771811904 = 201090^2 + 52648^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5401124997 + ... + 5401125004.

Almost surely, 2^43209000004 is an apocalyptic number.

It is an amenable number.

43209000004 is a deficient number, since it is larger than the sum of its proper divisors (32406750010).

43209000004 is a wasteful number, since it uses less digits than its factorization.

43209000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802250005 (or 10802250003 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 43209000004 its reverse (40000090234), we get a palindrome (83209090238).

The spelling of 43209000004 in words is "forty-three billion, two hundred nine million, four", and thus it is an aban number.