71043701242 has 4 divisors (see below), whose sum is σ = 106565551866. Its totient is φ = 35521850620.

The previous prime is 71043701231. The next prime is 71043701293. The reversal of 71043701242 is 24210734017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44851191961 + 26192509281 = 211781^2 + 161841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17760925309 + ... + 17760925312.

Almost surely, 2^71043701242 is an apocalyptic number.

71043701242 is a deficient number, since it is larger than the sum of its proper divisors (35521850624).

71043701242 is a wasteful number, since it uses less digits than its factorization.

71043701242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35521850623.

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 71043701242 in words is "seventy-one billion, forty-three million, seven hundred one thousand, two hundred forty-two".