70881604481 has 2 divisors, whose sum is σ = 70881604482. Its totient is φ = 70881604480.

The previous prime is 70881604471. The next prime is 70881604483. The reversal of 70881604481 is 18440618807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70153468225 + 728136256 = 264865^2 + 26984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70881604481 is a prime.

It is a super-2 number, since 2×70881604481² (a number of 23 digits) contains 22 as substring.

Together with 70881604483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70881604483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35440802240 + 35440802241.

It is an arithmetic number, because the mean of its divisors is an integer number (35440802241).

Almost surely, 2^70881604481 is an apocalyptic number.

It is an amenable number.

70881604481 is a deficient number, since it is larger than the sum of its proper divisors (1).

70881604481 is an equidigital number, since it uses as much as digits as its factorization.

70881604481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 70881604481 in words is "seventy billion, eight hundred eighty-one million, six hundred four thousand, four hundred eighty-one".