70634783837 has 2 divisors, whose sum is σ = 70634783838. Its totient is φ = 70634783836.

The previous prime is 70634783797. The next prime is 70634783839. The reversal of 70634783837 is 73838743607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47215378681 + 23419405156 = 217291^2 + 153034^2 .

It is a cyclic number.

It is not a de Polignac number, because 70634783837 - 2²⁰ = 70633735261 is a prime.

Together with 70634783839, 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 (70634783839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35317391918 + 35317391919.

It is an arithmetic number, because the mean of its divisors is an integer number (35317391919).

Almost surely, 2^70634783837 is an apocalyptic number.

It is an amenable number.

70634783837 is a deficient number, since it is larger than the sum of its proper divisors (1).

70634783837 is an equidigital number, since it uses as much as digits as its factorization.

70634783837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14224896, while the sum is 56.

The spelling of 70634783837 in words is "seventy billion, six hundred thirty-four million, seven hundred eighty-three thousand, eight hundred thirty-seven".