7880789297 has 4 divisors (see below), whose sum is σ = 8344365156. Its totient is φ = 7417213440.

The previous prime is 7880789291. The next prime is 7880789321. The reversal of 7880789297 is 7929870887.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2833539361 + 5047249936 = 53231^2 + 71044^2 .

It is a cyclic number.

It is not a de Polignac number, because 7880789297 - 2¹⁰ = 7880788273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7880789291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231787904 + ... + 231787937.

It is an arithmetic number, because the mean of its divisors is an integer number (2086091289).

Almost surely, 2^7880789297 is an apocalyptic number.

It is an amenable number.

7880789297 is a deficient number, since it is larger than the sum of its proper divisors (463575859).

7880789297 is a wasteful number, since it uses less digits than its factorization.

7880789297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463575858.

The product of its (nonzero) digits is 28449792, while the sum is 65.

The square root of 7880789297 is about 88773.8097470194. The cubic root of 7880789297 is about 1990.0160177326.

The spelling of 7880789297 in words is "seven billion, eight hundred eighty million, seven hundred eighty-nine thousand, two hundred ninety-seven".