81794790502222 has 32 divisors (see below), whose sum is σ = 145058238904320. Its totient is φ = 33845318004960.

The previous prime is 81794790502211. The next prime is 81794790502241. The reversal of 81794790502222 is 22220509749718.

It is a Harshad number since it is a multiple of its sum of digits (58).

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, 14917603 + ... + 19650049.

It is an arithmetic number, because the mean of its divisors is an integer number (4533069965760).

Almost surely, 2^{81794790502222} is an apocalyptic number.

81794790502222 is a deficient number, since it is larger than the sum of its proper divisors (63263448402098).

81794790502222 is a wasteful number, since it uses less digits than its factorization.

81794790502222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775056.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 81794790502222 in words is "eighty-one trillion, seven hundred ninety-four billion, seven hundred ninety million, five hundred two thousand, two hundred twenty-two".