6407133977 has 2 divisors, whose sum is σ = 6407133978. Its totient is φ = 6407133976.

The previous prime is 6407133973. The next prime is 6407134021. The reversal of 6407133977 is 7793317046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3264522496 + 3142611481 = 57136^2 + 56059^2 .

It is a cyclic number.

It is not a de Polignac number, because 6407133977 - 2² = 6407133973 is a prime.

It is not a weakly prime, because it can be changed into another prime (6407133973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203566988 + 3203566989.

It is an arithmetic number, because the mean of its divisors is an integer number (3203566989).

Almost surely, 2^6407133977 is an apocalyptic number.

It is an amenable number.

6407133977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6407133977 is an equidigital number, since it uses as much as digits as its factorization.

6407133977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 47.

The square root of 6407133977 is about 80044.5749379682. The cubic root of 6407133977 is about 1857.3251311970.

The spelling of 6407133977 in words is "six billion, four hundred seven million, one hundred thirty-three thousand, nine hundred seventy-seven".