43078814785801 has 2 divisors, whose sum is σ = 43078814785802. Its totient is φ = 43078814785800.

The previous prime is 43078814785753. The next prime is 43078814785817. The reversal of 43078814785801 is 10858741887034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38360383667776 + 4718431118025 = 6193576^2 + 2172195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43078814785801 is a prime.

It is a super-2 number, since 2×43078814785801² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43078814785891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21539407392900 + 21539407392901.

It is an arithmetic number, because the mean of its divisors is an integer number (21539407392901).

Almost surely, 2^{43078814785801} is an apocalyptic number.

It is an amenable number.

43078814785801 is a deficient number, since it is larger than the sum of its proper divisors (1).

43078814785801 is an equidigital number, since it uses as much as digits as its factorization.

43078814785801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48168960, while the sum is 64.

The spelling of 43078814785801 in words is "forty-three trillion, seventy-eight billion, eight hundred fourteen million, seven hundred eighty-five thousand, eight hundred one".