43028979953 has 4 divisors (see below), whose sum is σ = 43031930340. Its totient is φ = 43026029568.

The previous prime is 43028979943. The next prime is 43028979967. The reversal of 43028979953 is 35997982034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20501371489 + 22527608464 = 143183^2 + 150092^2 .

It is a cyclic number.

It is not a de Polignac number, because 43028979953 - 2⁴ = 43028979937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43028979892 and 43028979901.

It is not an unprimeable number, because it can be changed into a prime (43028979943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453208 + ... + 1482521.

It is an arithmetic number, because the mean of its divisors is an integer number (10757982585).

Almost surely, 2^43028979953 is an apocalyptic number.

It is an amenable number.

43028979953 is a deficient number, since it is larger than the sum of its proper divisors (2950387).

43028979953 is a wasteful number, since it uses less digits than its factorization.

43028979953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950386.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 43028979953 in words is "forty-three billion, twenty-eight million, nine hundred seventy-nine thousand, nine hundred fifty-three".