7721606010 has 32 divisors (see below), whose sum is σ = 18536428800. Its totient is φ = 2058586688.

The previous prime is 7721606003. The next prime is 7721606051. The reversal of 7721606010 is 106061277.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100879 + ... + 160061.

It is an arithmetic number, because the mean of its divisors is an integer number (579263400).

Almost surely, 2^7721606010 is an apocalyptic number.

7721606010 is an abundant number, since it is smaller than the sum of its proper divisors (10814822790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7721606010 is a wasteful number, since it uses less digits than its factorization.

7721606010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63542.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 7721606010 is about 87872.6693005283. The cubic root of 7721606010 is about 1976.5260659380.

Adding to 7721606010 its reverse (106061277), we get a palindrome (7827667287).

The spelling of 7721606010 in words is "seven billion, seven hundred twenty-one million, six hundred six thousand, ten".