81483125926 has 16 divisors (see below), whose sum is σ = 124035159600. Its totient is φ = 40142249568.

The previous prime is 81483125903. The next prime is 81483125993. The reversal of 81483125926 is 62952138418.

It is a self number, because there is not a number n which added to its sum of digits gives 81483125926.

It is a congruent number.

It is an unprimeable number.

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, 1005045 + ... + 1083088.

It is an arithmetic number, because the mean of its divisors is an integer number (7752197475).

Almost surely, 2^81483125926 is an apocalyptic number.

81483125926 is a deficient number, since it is larger than the sum of its proper divisors (42552033674).

81483125926 is a wasteful number, since it uses less digits than its factorization.

81483125926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088423.

The product of its digits is 829440, while the sum is 49.

The spelling of 81483125926 in words is "eighty-one billion, four hundred eighty-three million, one hundred twenty-five thousand, nine hundred twenty-six".