71273922854 has 4 divisors (see below), whose sum is σ = 106910884284. Its totient is φ = 35636961426.

The previous prime is 71273922851. The next prime is 71273922877. The reversal of 71273922854 is 45822937217.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71273922851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17818480712 + ... + 17818480715.

It is an arithmetic number, because the mean of its divisors is an integer number (26727721071).

Almost surely, 2^71273922854 is an apocalyptic number.

71273922854 is a deficient number, since it is larger than the sum of its proper divisors (35636961430).

71273922854 is a wasteful number, since it uses less digits than its factorization.

71273922854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35636961429.

The product of its digits is 1693440, while the sum is 50.

The spelling of 71273922854 in words is "seventy-one billion, two hundred seventy-three million, nine hundred twenty-two thousand, eight hundred fifty-four".