7667640473 has 4 divisors (see below), whose sum is σ = 7667846400. Its totient is φ = 7667434548.

The previous prime is 7667640469. The next prime is 7667640481. The reversal of 7667640473 is 3740467667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7667640473 - 2² = 7667640469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7667640493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29765 + ... + 127362.

It is an arithmetic number, because the mean of its divisors is an integer number (1916961600).

Almost surely, 2^7667640473 is an apocalyptic number.

It is an amenable number.

7667640473 is a deficient number, since it is larger than the sum of its proper divisors (205927).

7667640473 is a wasteful number, since it uses less digits than its factorization.

7667640473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205926.

The product of its (nonzero) digits is 3556224, while the sum is 50.

The square root of 7667640473 is about 87565.0642265510. The cubic root of 7667640473 is about 1971.9107156925.

The spelling of 7667640473 in words is "seven billion, six hundred sixty-seven million, six hundred forty thousand, four hundred seventy-three".