81850060750 has 32 divisors (see below), whose sum is σ = 153369871200. Its totient is φ = 32708708800.

The previous prime is 81850060717. The next prime is 81850060843. The reversal of 81850060750 is 5706005818.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106197 + ... + 418303.

It is an arithmetic number, because the mean of its divisors is an integer number (4792808475).

Almost surely, 2^81850060750 is an apocalyptic number.

81850060750 is a deficient number, since it is larger than the sum of its proper divisors (71519810450).

81850060750 is a wasteful number, since it uses less digits than its factorization.

81850060750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313173 (or 313163 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 81850060750 in words is "eighty-one billion, eight hundred fifty million, sixty thousand, seven hundred fifty".