81748084702 has 8 divisors (see below), whose sum is σ = 122937352200. Its totient is φ = 40768967304.

The previous prime is 81748084699. The next prime is 81748084727. The reversal of 81748084702 is 20748084718.

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

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 3 ways as a sum of consecutive naturals, for example, 52536552 + ... + 52538107.

It is an arithmetic number, because the mean of its divisors is an integer number (15367169025).

Almost surely, 2^81748084702 is an apocalyptic number.

81748084702 is a deficient number, since it is larger than the sum of its proper divisors (41189267498).

81748084702 is a wasteful number, since it uses less digits than its factorization.

81748084702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105075050.

The product of its (nonzero) digits is 802816, while the sum is 49.

The spelling of 81748084702 in words is "eighty-one billion, seven hundred forty-eight million, eighty-four thousand, seven hundred two".