43117530072493 has 2 divisors, whose sum is σ = 43117530072494. Its totient is φ = 43117530072492.

The previous prime is 43117530072479. The next prime is 43117530072503. The reversal of 43117530072493 is 39427003571134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35413008479689 + 7704521592804 = 5950883^2 + 2775702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43117530072493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43117530072193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21558765036246 + 21558765036247.

It is an arithmetic number, because the mean of its divisors is an integer number (21558765036247).

Almost surely, 2^{43117530072493} is an apocalyptic number.

It is an amenable number.

43117530072493 is a deficient number, since it is larger than the sum of its proper divisors (1).

43117530072493 is an equidigital number, since it uses as much as digits as its factorization.

43117530072493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 43117530072493 in words is "forty-three trillion, one hundred seventeen billion, five hundred thirty million, seventy-two thousand, four hundred ninety-three".