6016778491 has 2 divisors, whose sum is σ = 6016778492. Its totient is φ = 6016778490.

The previous prime is 6016778423. The next prime is 6016778501. The reversal of 6016778491 is 1948776106.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6016778491 - 2¹¹ = 6016776443 is a prime.

It is not a weakly prime, because it can be changed into another prime (6016778401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3008389245 + 3008389246.

It is an arithmetic number, because the mean of its divisors is an integer number (3008389246).

Almost surely, 2^6016778491 is an apocalyptic number.

6016778491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6016778491 is an equidigital number, since it uses as much as digits as its factorization.

6016778491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 6016778491 is about 77567.8960073045. The cubic root of 6016778491 is about 1818.8128242789.

The spelling of 6016778491 in words is "six billion, sixteen million, seven hundred seventy-eight thousand, four hundred ninety-one".