82194064990 has 16 divisors (see below), whose sum is σ = 147964899600. Its totient is φ = 32874163200.

The previous prime is 82194064957. The next prime is 82194064991. The reversal of 82194064990 is 9946049128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82194064991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332040 + ... + 524059.

It is an arithmetic number, because the mean of its divisors is an integer number (9247806225).

Almost surely, 2^82194064990 is an apocalyptic number.

82194064990 is a deficient number, since it is larger than the sum of its proper divisors (65770834610).

82194064990 is a wasteful number, since it uses less digits than its factorization.

82194064990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865707.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 82194064990 in words is "eighty-two billion, one hundred ninety-four million, sixty-four thousand, nine hundred ninety".