7980547265 has 8 divisors (see below), whose sum is σ = 9906886440. Its totient is φ = 6164284672.

The previous prime is 7980547261. The next prime is 7980547271. The reversal of 7980547265 is 5627450897.

It can be written as a sum of positive squares in 4 ways, for example, as 403367056 + 7577180209 = 20084^2 + 87047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7980547265 - 2² = 7980547261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7980547261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27518984 + ... + 27519273.

It is an arithmetic number, because the mean of its divisors is an integer number (1238360805).

Almost surely, 2^7980547265 is an apocalyptic number.

It is an amenable number.

7980547265 is a deficient number, since it is larger than the sum of its proper divisors (1926339175).

7980547265 is a wasteful number, since it uses less digits than its factorization.

7980547265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55038291.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The square root of 7980547265 is about 89333.9088196638. The cubic root of 7980547265 is about 1998.3776230524.

The spelling of 7980547265 in words is "seven billion, nine hundred eighty million, five hundred forty-seven thousand, two hundred sixty-five".