7720221726025 has 24 divisors (see below), whose sum is σ = 10065549852864. Its totient is φ = 5862551323200.

The previous prime is 7720221725987. The next prime is 7720221726031. The reversal of 7720221726025 is 5206271220277.

It is a de Polignac number, because none of the positive numbers 2^k-7720221726025 is a prime.

It is a Duffinian number.

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 in 23 ways as a sum of consecutive naturals, for example, 51170754 + ... + 51321403.

It is an arithmetic number, because the mean of its divisors is an integer number (419397910536).

Almost surely, 2^{7720221726025} is an apocalyptic number.

It is an amenable number.

7720221726025 is a deficient number, since it is larger than the sum of its proper divisors (2345328126839).

7720221726025 is a wasteful number, since it uses less digits than its factorization.

7720221726025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102492321 (or 102492316 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 7720221726025 in words is "seven trillion, seven hundred twenty billion, two hundred twenty-one million, seven hundred twenty-six thousand, twenty-five".