70423889827 has 2 divisors, whose sum is σ = 70423889828. Its totient is φ = 70423889826.

The previous prime is 70423889803. The next prime is 70423889849. The reversal of 70423889827 is 72898832407.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70423889827 - 2²⁷ = 70289672099 is a prime.

It is not a weakly prime, because it can be changed into another prime (70423889527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35211944913 + 35211944914.

It is an arithmetic number, because the mean of its divisors is an integer number (35211944914).

Almost surely, 2^70423889827 is an apocalyptic number.

70423889827 is a deficient number, since it is larger than the sum of its proper divisors (1).

70423889827 is an equidigital number, since it uses as much as digits as its factorization.

70423889827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 70423889827 in words is "seventy billion, four hundred twenty-three million, eight hundred eighty-nine thousand, eight hundred twenty-seven".