6490293977 has 2 divisors, whose sum is σ = 6490293978. Its totient is φ = 6490293976.

The previous prime is 6490293919. The next prime is 6490293991. The reversal of 6490293977 is 7793920946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6467215561 + 23078416 = 80419^2 + 4804^2 .

It is a cyclic number.

It is not a de Polignac number, because 6490293977 - 2²⁴ = 6473516761 is a prime.

It is not a weakly prime, because it can be changed into another prime (6490233977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3245146988 + 3245146989.

It is an arithmetic number, because the mean of its divisors is an integer number (3245146989).

Almost surely, 2^6490293977 is an apocalyptic number.

It is an amenable number.

6490293977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6490293977 is an equidigital number, since it uses as much as digits as its factorization.

6490293977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The square root of 6490293977 is about 80562.3607958456. The cubic root of 6490293977 is about 1865.3261967079.

The spelling of 6490293977 in words is "six billion, four hundred ninety million, two hundred ninety-three thousand, nine hundred seventy-seven".