81926060100 has 72 divisors (see below), whose sum is σ = 249515175840. Its totient is φ = 20697108480.

The previous prime is 81926060089. The next prime is 81926060131. The reversal of 81926060100 is 106062918.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7180797 + ... + 7192196.

Almost surely, 2^81926060100 is an apocalyptic number.

It is an amenable number.

81926060100 is an abundant number, since it is smaller than the sum of its proper divisors (167589115740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81926060100 is a wasteful number, since it uses less digits than its factorization.

81926060100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14373029 (or 14373022 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 81926060100 in words is "eighty-one billion, nine hundred twenty-six million, sixty thousand, one hundred".