7720461772 has 6 divisors (see below), whose sum is σ = 13510808108. Its totient is φ = 3860230884.

The previous prime is 7720461689. The next prime is 7720461781. The reversal of 7720461772 is 2771640277.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 965057718 + ... + 965057725.

Almost surely, 2^7720461772 is an apocalyptic number.

It is an amenable number.

7720461772 is a deficient number, since it is larger than the sum of its proper divisors (5790346336).

7720461772 is a wasteful number, since it uses less digits than its factorization.

7720461772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930115447 (or 1930115445 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 43.

The square root of 7720461772 is about 87866.1582863391. The cubic root of 7720461772 is about 1976.4284296020.

The spelling of 7720461772 in words is "seven billion, seven hundred twenty million, four hundred sixty-one thousand, seven hundred seventy-two".