7980780334705 has 16 divisors (see below), whose sum is σ = 9993432443904. Its totient is φ = 6106966212160.

The previous prime is 7980780334697. The next prime is 7980780334753. The reversal of 7980780334705 is 5074330870897.

It is not a de Polignac number, because 7980780334705 - 2³ = 7980780334697 is a prime.

It is a Duffinian number.

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, 12195552 + ... + 12833278.

It is an arithmetic number, because the mean of its divisors is an integer number (624589527744).

Almost surely, 2^{7980780334705} is an apocalyptic number.

It is an amenable number.

7980780334705 is a deficient number, since it is larger than the sum of its proper divisors (2012652109199).

7980780334705 is a wasteful number, since it uses less digits than its factorization.

7980780334705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746576.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 7980780334705 in words is "seven trillion, nine hundred eighty billion, seven hundred eighty million, three hundred thirty-four thousand, seven hundred five".