7980105879 has 32 divisors (see below), whose sum is σ = 11987352000. Its totient is φ = 5246157312.

The previous prime is 7980105841. The next prime is 7980105893. The reversal of 7980105879 is 9785010897.

It is a de Polignac number, because none of the positive numbers 2^k-7980105879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7980105899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930499 + ... + 939035.

It is an arithmetic number, because the mean of its divisors is an integer number (374604750).

Almost surely, 2^7980105879 is an apocalyptic number.

7980105879 is a deficient number, since it is larger than the sum of its proper divisors (4007246121).

7980105879 is a wasteful number, since it uses less digits than its factorization.

7980105879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024 (or 9018 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The square root of 7980105879 is about 89331.4383573891. The cubic root of 7980105879 is about 1998.3407804592.

The spelling of 7980105879 in words is "seven billion, nine hundred eighty million, one hundred five thousand, eight hundred seventy-nine".