5419007981 has 2 divisors, whose sum is σ = 5419007982. Its totient is φ = 5419007980.

The previous prime is 5419007977. The next prime is 5419008053. The reversal of 5419007981 is 1897009145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4936327081 + 482680900 = 70259^2 + 21970^2 .

It is a cyclic number.

It is not a de Polignac number, because 5419007981 - 2² = 5419007977 is a prime.

It is a super-2 number, since 2×5419007981² = 58731294996283392722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5419007281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2709503990 + 2709503991.

It is an arithmetic number, because the mean of its divisors is an integer number (2709503991).

Almost surely, 2^5419007981 is an apocalyptic number.

It is an amenable number.

5419007981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5419007981 is an equidigital number, since it uses as much as digits as its factorization.

5419007981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 5419007981 is about 73613.9115996426. The cubic root of 5419007981 is about 1756.4667387582.

The spelling of 5419007981 in words is "five billion, four hundred nineteen million, seven thousand, nine hundred eighty-one".