6500472977 has 2 divisors, whose sum is σ = 6500472978. Its totient is φ = 6500472976.

The previous prime is 6500472973. The next prime is 6500473009. The reversal of 6500472977 is 7792740056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4490206081 + 2010266896 = 67009^2 + 44836^2 .

It is a cyclic number.

It is not a de Polignac number, because 6500472977 - 2² = 6500472973 is a prime.

It is a super-2 number, since 2×6500472977² = 84512297849414485058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6500472973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250236488 + 3250236489.

It is an arithmetic number, because the mean of its divisors is an integer number (3250236489).

Almost surely, 2^6500472977 is an apocalyptic number.

It is an amenable number.

6500472977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6500472977 is an equidigital number, since it uses as much as digits as its factorization.

6500472977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 6500472977 is about 80625.5107084600. The cubic root of 6500472977 is about 1866.3008437704.

The spelling of 6500472977 in words is "six billion, five hundred million, four hundred seventy-two thousand, nine hundred seventy-seven".