70779848539 has 2 divisors, whose sum is σ = 70779848540. Its totient is φ = 70779848538.

The previous prime is 70779848459. The next prime is 70779848543. The reversal of 70779848539 is 93584897707.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70779848539 - 2⁷ = 70779848411 is a prime.

It is not a weakly prime, because it can be changed into another prime (70779848599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35389924269 + 35389924270.

It is an arithmetic number, because the mean of its divisors is an integer number (35389924270).

Almost surely, 2^70779848539 is an apocalyptic number.

70779848539 is a deficient number, since it is larger than the sum of its proper divisors (1).

70779848539 is an equidigital number, since it uses as much as digits as its factorization.

70779848539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 106686720, while the sum is 67.

The spelling of 70779848539 in words is "seventy billion, seven hundred seventy-nine million, eight hundred forty-eight thousand, five hundred thirty-nine".