7672649969 has 4 divisors (see below), whose sum is σ = 7673330544. Its totient is φ = 7671969396.

The previous prime is 7672649953. The next prime is 7672650043. The reversal of 7672649969 is 9699462767.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9699462767 = 67 ⋅144768101.

It is a cyclic number.

It is not a de Polignac number, because 7672649969 - 2⁴ = 7672649953 is a prime.

It is a super-2 number, since 2×7672649969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7672649909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323087 + ... + 346020.

It is an arithmetic number, because the mean of its divisors is an integer number (1918332636).

Almost surely, 2^7672649969 is an apocalyptic number.

It is an amenable number.

7672649969 is a deficient number, since it is larger than the sum of its proper divisors (680575).

7672649969 is a wasteful number, since it uses less digits than its factorization.

7672649969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680574.

The product of its digits is 61725888, while the sum is 65.

The square root of 7672649969 is about 87593.6639774818. The cubic root of 7672649969 is about 1972.3400580436.

The spelling of 7672649969 in words is "seven billion, six hundred seventy-two million, six hundred forty-nine thousand, nine hundred sixty-nine".