5434490981 has 2 divisors, whose sum is σ = 5434490982. Its totient is φ = 5434490980.

The previous prime is 5434490933. The next prime is 5434490993. The reversal of 5434490981 is 1890944345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4236708100 + 1197782881 = 65090^2 + 34609^2 .

It is a cyclic number.

It is not a de Polignac number, because 5434490981 - 2⁶ = 5434490917 is a prime.

It is a super-2 number, since 2×5434490981² = 59067384445140684722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5434490911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2717245490 + 2717245491.

It is an arithmetic number, because the mean of its divisors is an integer number (2717245491).

Almost surely, 2^5434490981 is an apocalyptic number.

It is an amenable number.

5434490981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5434490981 is an equidigital number, since it uses as much as digits as its factorization.

5434490981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 5434490981 is about 73719.0001356502. Note that the first 3 decimals coincide. The cubic root of 5434490981 is about 1758.1379865270.

The spelling of 5434490981 in words is "five billion, four hundred thirty-four million, four hundred ninety thousand, nine hundred eighty-one".