43257404419 has 2 divisors, whose sum is σ = 43257404420. Its totient is φ = 43257404418.

The previous prime is 43257404381. The next prime is 43257404447. The reversal of 43257404419 is 91440475234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43257404419 - 2¹³ = 43257396227 is a prime.

It is a super-2 number, since 2×43257404419² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43257404219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21628702209 + 21628702210.

It is an arithmetic number, because the mean of its divisors is an integer number (21628702210).

Almost surely, 2^43257404419 is an apocalyptic number.

43257404419 is a deficient number, since it is larger than the sum of its proper divisors (1).

43257404419 is an equidigital number, since it uses as much as digits as its factorization.

43257404419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 43257404419 in words is "forty-three billion, two hundred fifty-seven million, four hundred four thousand, four hundred nineteen".