70642643327 has 2 divisors, whose sum is σ = 70642643328. Its totient is φ = 70642643326.

The previous prime is 70642643303. The next prime is 70642643329. The reversal of 70642643327 is 72334624607.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70642643327 - 2⁶ = 70642643263 is a prime.

Together with 70642643329, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70642643329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35321321663 + 35321321664.

It is an arithmetic number, because the mean of its divisors is an integer number (35321321664).

Almost surely, 2^70642643327 is an apocalyptic number.

70642643327 is a deficient number, since it is larger than the sum of its proper divisors (1).

70642643327 is an equidigital number, since it uses as much as digits as its factorization.

70642643327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 44.

The spelling of 70642643327 in words is "seventy billion, six hundred forty-two million, six hundred forty-three thousand, three hundred twenty-seven".