5146789861 has 2 divisors, whose sum is σ = 5146789862. Its totient is φ = 5146789860.

The previous prime is 5146789847. The next prime is 5146789871. The reversal of 5146789861 is 1689876415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5060188225 + 86601636 = 71135^2 + 9306^2 .

It is a cyclic number.

It is not a de Polignac number, because 5146789861 - 2²³ = 5138401253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5146789871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573394930 + 2573394931.

It is an arithmetic number, because the mean of its divisors is an integer number (2573394931).

Almost surely, 2^5146789861 is an apocalyptic number.

It is an amenable number.

5146789861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5146789861 is an equidigital number, since it uses as much as digits as its factorization.

5146789861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 55.

The square root of 5146789861 is about 71741.1308873787. The cubic root of 5146789861 is about 1726.5486182461.

The spelling of 5146789861 in words is "five billion, one hundred forty-six million, seven hundred eighty-nine thousand, eight hundred sixty-one".