6377066491 has 2 divisors, whose sum is σ = 6377066492. Its totient is φ = 6377066490.

The previous prime is 6377066483. The next prime is 6377066533. The reversal of 6377066491 is 1946607736.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6377066491 - 2³ = 6377066483 is a prime.

It is not a weakly prime, because it can be changed into another prime (6377066431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188533245 + 3188533246.

It is an arithmetic number, because the mean of its divisors is an integer number (3188533246).

Almost surely, 2^6377066491 is an apocalyptic number.

6377066491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6377066491 is an equidigital number, since it uses as much as digits as its factorization.

6377066491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The square root of 6377066491 is about 79856.5369334283. The cubic root of 6377066491 is about 1854.4152142761.

The spelling of 6377066491 in words is "six billion, three hundred seventy-seven million, sixty-six thousand, four hundred ninety-one".