43100451049 has 2 divisors, whose sum is σ = 43100451050. Its totient is φ = 43100451048.

The previous prime is 43100451041. The next prime is 43100451071. The reversal of 43100451049 is 94015400134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42738119824 + 362331225 = 206732^2 + 19035^2 .

It is a cyclic number.

It is not a de Polignac number, because 43100451049 - 2³ = 43100451041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43100451049.

It is not a weakly prime, because it can be changed into another prime (43100451041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21550225524 + 21550225525.

It is an arithmetic number, because the mean of its divisors is an integer number (21550225525).

Almost surely, 2^43100451049 is an apocalyptic number.

It is an amenable number.

43100451049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43100451049 is an equidigital number, since it uses as much as digits as its factorization.

43100451049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 43100451049 in words is "forty-three billion, one hundred million, four hundred fifty-one thousand, forty-nine".