5163781397 has 2 divisors, whose sum is σ = 5163781398. Its totient is φ = 5163781396.

The previous prime is 5163781391. The next prime is 5163781409. The reversal of 5163781397 is 7931873615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4437424996 + 726356401 = 66614^2 + 26951^2 .

It is a cyclic number.

It is not a de Polignac number, because 5163781397 - 2²² = 5159587093 is a prime.

It is a super-3 number, since 3×5163781397³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5163781391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2581890698 + 2581890699.

It is an arithmetic number, because the mean of its divisors is an integer number (2581890699).

Almost surely, 2^5163781397 is an apocalyptic number.

It is an amenable number.

5163781397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5163781397 is an equidigital number, since it uses as much as digits as its factorization.

5163781397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 5163781397 is about 71859.4558635118. The cubic root of 5163781397 is about 1728.4465318936.

The spelling of 5163781397 in words is "five billion, one hundred sixty-three million, seven hundred eighty-one thousand, three hundred ninety-seven".