64472743667 has 2 divisors, whose sum is σ = 64472743668. Its totient is φ = 64472743666.

The previous prime is 64472743631. The next prime is 64472743679. The reversal of 64472743667 is 76634727446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64472743667 - 2¹⁰ = 64472742643 is a prime.

It is not a weakly prime, because it can be changed into another prime (64472743607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32236371833 + 32236371834.

It is an arithmetic number, because the mean of its divisors is an integer number (32236371834).

Almost surely, 2^64472743667 is an apocalyptic number.

64472743667 is a deficient number, since it is larger than the sum of its proper divisors (1).

64472743667 is an equidigital number, since it uses as much as digits as its factorization.

64472743667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28449792, while the sum is 56.

The spelling of 64472743667 in words is "sixty-four billion, four hundred seventy-two million, seven hundred forty-three thousand, six hundred sixty-seven".