43249196549 has 16 divisors (see below), whose sum is σ = 46690109424. Its totient is φ = 39824716800.

The previous prime is 43249196539. The next prime is 43249196569. The reversal of 43249196549 is 94569194234.

It can be written as a sum of positive squares in 8 ways, for example, as 675064324 + 42574132225 = 25982^2 + 206335^2 .

It is a cyclic number.

It is not a de Polignac number, because 43249196549 - 2⁸ = 43249196293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43249196494 and 43249196503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43249196509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10775267 + ... + 10779279.

It is an arithmetic number, because the mean of its divisors is an integer number (2918131839).

Almost surely, 2^43249196549 is an apocalyptic number.

It is an amenable number.

43249196549 is a deficient number, since it is larger than the sum of its proper divisors (3440912875).

43249196549 is a wasteful number, since it uses less digits than its factorization.

43249196549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848.

The product of its digits is 8398080, while the sum is 56.

The spelling of 43249196549 in words is "forty-three billion, two hundred forty-nine million, one hundred ninety-six thousand, five hundred forty-nine".