90821712196 has 48 divisors (see below), whose sum is σ = 161341931520. Its totient is φ = 44730957600.

The previous prime is 90821712187. The next prime is 90821712211. The reversal of 90821712196 is 69121712809.

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, 35601121 + ... + 35603671.

It is an arithmetic number, because the mean of its divisors is an integer number (3361290240).

Almost surely, 2^90821712196 is an apocalyptic number.

It is an amenable number.

90821712196 is a deficient number, since it is larger than the sum of its proper divisors (70520219324).

90821712196 is a wasteful number, since it uses less digits than its factorization.

90821712196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 90821712196 in words is "ninety billion, eight hundred twenty-one million, seven hundred twelve thousand, one hundred ninety-six".