334385126399981 has 2 divisors, whose sum is σ = 334385126399982. Its totient is φ = 334385126399980.

The previous prime is 334385126399861. The next prime is 334385126400001. The reversal of 334385126399981 is 189993621583433.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211468746061225 + 122916380338756 = 14541965^2 + 11086766^2 .

It is a cyclic number.

It is not a de Polignac number, because 334385126399981 - 2¹⁰ = 334385126398957 is a prime.

It is a super-2 number, since 2×334385126399981² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 334385126399899 and 334385126399908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334385126399381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167192563199990 + 167192563199991.

It is an arithmetic number, because the mean of its divisors is an integer number (167192563199991).

Almost surely, 2^{334385126399981} is an apocalyptic number.

It is an amenable number.

334385126399981 is a deficient number, since it is larger than the sum of its proper divisors (1).

334385126399981 is an equidigital number, since it uses as much as digits as its factorization.

334385126399981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 906992640, while the sum is 74.

The spelling of 334385126399981 in words is "three hundred thirty-four trillion, three hundred eighty-five billion, one hundred twenty-six million, three hundred ninety-nine thousand, nine hundred eighty-one".