70784050993 has 4 divisors (see below), whose sum is σ = 70792796788. Its totient is φ = 70775305200.

The previous prime is 70784050979. The next prime is 70784051017. The reversal of 70784050993 is 39905048707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39905048707 = 179 ⋅222933233.

It can be written as a sum of positive squares in 2 ways, for example, as 54656828944 + 16127222049 = 233788^2 + 126993^2 .

It is a cyclic number.

It is not a de Polignac number, because 70784050993 - 2³³ = 62194116401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70784050993.

It is not an unprimeable number, because it can be changed into a prime (70784050933) 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 in 3 ways as a sum of consecutive naturals, for example, 4360746 + ... + 4376947.

It is an arithmetic number, because the mean of its divisors is an integer number (17698199197).

Almost surely, 2^70784050993 is an apocalyptic number.

It is an amenable number.

70784050993 is a deficient number, since it is larger than the sum of its proper divisors (8745795).

70784050993 is an equidigital number, since it uses as much as digits as its factorization.

70784050993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745794.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 70784050993 in words is "seventy billion, seven hundred eighty-four million, fifty thousand, nine hundred ninety-three".