70712797394 has 4 divisors (see below), whose sum is σ = 106069196094. Its totient is φ = 35356398696.

The previous prime is 70712797391. The next prime is 70712797453. The reversal of 70712797394 is 49379721707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49379721707 = 281 ⋅175728547.

It can be written as a sum of positive squares in only one way, i.e., 69271608025 + 1441189369 = 263195^2 + 37963^2 .

It is not an unprimeable number, because it can be changed into a prime (70712797391) 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 as a sum of consecutive naturals, namely, 17678199347 + ... + 17678199350.

Almost surely, 2^70712797394 is an apocalyptic number.

70712797394 is a deficient number, since it is larger than the sum of its proper divisors (35356398700).

70712797394 is a wasteful number, since it uses less digits than its factorization.

70712797394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35356398699.

The product of its (nonzero) digits is 4667544, while the sum is 56.

The spelling of 70712797394 in words is "seventy billion, seven hundred twelve million, seven hundred ninety-seven thousand, three hundred ninety-four".