71042873458 has 8 divisors (see below), whose sum is σ = 106869653100. Its totient is φ = 35419655760.

The previous prime is 71042873423. The next prime is 71042873471. The reversal of 71042873458 is 85437824017.

It can be written as a sum of positive squares in 2 ways, for example, as 67955626489 + 3087246969 = 260683^2 + 55563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50889613 + ... + 50891008.

Almost surely, 2^71042873458 is an apocalyptic number.

71042873458 is a deficient number, since it is larger than the sum of its proper divisors (35826779642).

71042873458 is a wasteful number, since it uses less digits than its factorization.

71042873458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101780972.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 71042873458 in words is "seventy-one billion, forty-two million, eight hundred seventy-three thousand, four hundred fifty-eight".