5145940777 has 2 divisors, whose sum is σ = 5145940778. Its totient is φ = 5145940776.

The previous prime is 5145940771. The next prime is 5145940781. The reversal of 5145940777 is 7770495415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3649488921 + 1496451856 = 60411^2 + 38684^2 .

It is a cyclic number.

It is not a de Polignac number, because 5145940777 - 2¹⁹ = 5145416489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5145940777.

It is not a weakly prime, because it can be changed into another prime (5145940771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2572970388 + 2572970389.

It is an arithmetic number, because the mean of its divisors is an integer number (2572970389).

Almost surely, 2^5145940777 is an apocalyptic number.

It is an amenable number.

5145940777 is a deficient number, since it is larger than the sum of its proper divisors (1).

5145940777 is an equidigital number, since it uses as much as digits as its factorization.

5145940777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The square root of 5145940777 is about 71735.2129501265. The cubic root of 5145940777 is about 1726.4536680946.

The spelling of 5145940777 in words is "five billion, one hundred forty-five million, nine hundred forty thousand, seven hundred seventy-seven".