43424621635019 has 2 divisors, whose sum is σ = 43424621635020. Its totient is φ = 43424621635018.

The previous prime is 43424621634943. The next prime is 43424621635061. The reversal of 43424621635019 is 91053612642434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43424621635019 is a prime.

It is a super-2 number, since 2×43424621635019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43424621605019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712310817509 + 21712310817510.

It is an arithmetic number, because the mean of its divisors is an integer number (21712310817510).

Almost surely, 2^{43424621635019} is an apocalyptic number.

43424621635019 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424621635019 is an equidigital number, since it uses as much as digits as its factorization.

43424621635019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 43424621635019 in words is "forty-three trillion, four hundred twenty-four billion, six hundred twenty-one million, six hundred thirty-five thousand, nineteen".