43189294949 has 4 divisors (see below), whose sum is σ = 43189829760. Its totient is φ = 43188760140.

The previous prime is 43189294927. The next prime is 43189294961. The reversal of 43189294949 is 94949298134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43189294949 - 2¹² = 43189290853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43189294891 and 43189294900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43189294919) 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, 118709 + ... + 316970.

It is an arithmetic number, because the mean of its divisors is an integer number (10797457440).

Almost surely, 2^43189294949 is an apocalyptic number.

It is an amenable number.

43189294949 is a deficient number, since it is larger than the sum of its proper divisors (534811).

43189294949 is an equidigital number, since it uses as much as digits as its factorization.

43189294949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534810.

The product of its digits is 20155392, while the sum is 62.

The spelling of 43189294949 in words is "forty-three billion, one hundred eighty-nine million, two hundred ninety-four thousand, nine hundred forty-nine".