2108833158621 has 16 divisors (see below), whose sum is σ = 3213483292800. Its totient is φ = 1205038803648.

The previous prime is 2108833158617. The next prime is 2108833158631. The reversal of 2108833158621 is 1268513388012.

It is not a de Polignac number, because 2108833158621 - 2² = 2108833158617 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108833158631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3631315 + ... + 4171823.

It is an arithmetic number, because the mean of its divisors is an integer number (200842705800).

Almost surely, 2^{2108833158621} is an apocalyptic number.

2108833158621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2108833158621 is a deficient number, since it is larger than the sum of its proper divisors (1104650134179).

2108833158621 is a wasteful number, since it uses less digits than its factorization.

2108833158621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726308.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 2108833158621 in words is "two trillion, one hundred eight billion, eight hundred thirty-three million, one hundred fifty-eight thousand, six hundred twenty-one".