71857220702 has 16 divisors (see below), whose sum is σ = 110725355472. Its totient is φ = 34949232000.

The previous prime is 71857220693. The next prime is 71857220749. The reversal of 71857220702 is 20702275817.

It is a self number, because there is not a number n which added to its sum of digits gives 71857220702.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 202577 + ... + 429827.

It is an arithmetic number, because the mean of its divisors is an integer number (6920334717).

Almost surely, 2^71857220702 is an apocalyptic number.

71857220702 is a deficient number, since it is larger than the sum of its proper divisors (38868134770).

71857220702 is a wasteful number, since it uses less digits than its factorization.

71857220702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231563.

The product of its (nonzero) digits is 109760, while the sum is 41.

The spelling of 71857220702 in words is "seventy-one billion, eight hundred fifty-seven million, two hundred twenty thousand, seven hundred two".