4338154805081 has 2 divisors, whose sum is σ = 4338154805082. Its totient is φ = 4338154805080.

The previous prime is 4338154805063. The next prime is 4338154805093. The reversal of 4338154805081 is 1805084518334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4249534873600 + 88619931481 = 2061440^2 + 297691^2 .

It is a cyclic number.

It is not a de Polignac number, because 4338154805081 - 2¹⁰ = 4338154804057 is a prime.

It is a super-2 number, since 2×4338154805081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4338154805041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2169077402540 + 2169077402541.

It is an arithmetic number, because the mean of its divisors is an integer number (2169077402541).

Almost surely, 2^{4338154805081} is an apocalyptic number.

It is an amenable number.

4338154805081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4338154805081 is an equidigital number, since it uses as much as digits as its factorization.

4338154805081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 4338154805081 in words is "four trillion, three hundred thirty-eight billion, one hundred fifty-four million, eight hundred five thousand, eighty-one".