43974608551 has 2 divisors, whose sum is σ = 43974608552. Its totient is φ = 43974608550.

The previous prime is 43974608497. The next prime is 43974608567. The reversal of 43974608551 is 15580647934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43974608551 - 2¹³ = 43974600359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43974608651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21987304275 + 21987304276.

It is an arithmetic number, because the mean of its divisors is an integer number (21987304276).

Almost surely, 2^43974608551 is an apocalyptic number.

43974608551 is a deficient number, since it is larger than the sum of its proper divisors (1).

43974608551 is an equidigital number, since it uses as much as digits as its factorization.

43974608551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 43974608551 in words is "forty-three billion, nine hundred seventy-four million, six hundred eight thousand, five hundred fifty-one".