7155880079 has 2 divisors, whose sum is σ = 7155880080. Its totient is φ = 7155880078.

The previous prime is 7155880051. The next prime is 7155880097. The reversal of 7155880079 is 9700885517.

Together with next prime (7155880097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7155880079 - 2¹² = 7155875983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7155840079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3577940039 + 3577940040.

It is an arithmetic number, because the mean of its divisors is an integer number (3577940040).

Almost surely, 2^7155880079 is an apocalyptic number.

7155880079 is a deficient number, since it is larger than the sum of its proper divisors (1).

7155880079 is an equidigital number, since it uses as much as digits as its factorization.

7155880079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 50.

The square root of 7155880079 is about 84592.4351168590. The cubic root of 7155880079 is about 1927.0264894334.

The spelling of 7155880079 in words is "seven billion, one hundred fifty-five million, eight hundred eighty thousand, seventy-nine".