70819513847 has 2 divisors, whose sum is σ = 70819513848. Its totient is φ = 70819513846.

The previous prime is 70819513819. The next prime is 70819513859. The reversal of 70819513847 is 74831591807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70819513847 - 2¹² = 70819509751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70819513867) 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 as a sum of consecutive naturals, namely, 35409756923 + 35409756924.

It is an arithmetic number, because the mean of its divisors is an integer number (35409756924).

Almost surely, 2^70819513847 is an apocalyptic number.

70819513847 is a deficient number, since it is larger than the sum of its proper divisors (1).

70819513847 is an equidigital number, since it uses as much as digits as its factorization.

70819513847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 70819513847 in words is "seventy billion, eight hundred nineteen million, five hundred thirteen thousand, eight hundred forty-seven".