2821110106625 has 32 divisors (see below), whose sum is σ = 3535098611616. Its totient is φ = 2247705600000.

The previous prime is 2821110106609. The next prime is 2821110106691. The reversal of 2821110106625 is 5266010111282.

It can be written as a sum of positive squares in 16 ways, for example, as 2767089190849 + 54020915776 = 1663457^2 + 232424^2 .

It is not a de Polignac number, because 2821110106625 - 2⁴ = 2821110106609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31161425 + ... + 31251825.

It is an arithmetic number, because the mean of its divisors is an integer number (110471831613).

Almost surely, 2^{2821110106625} is an apocalyptic number.

2821110106625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2821110106625 is a deficient number, since it is larger than the sum of its proper divisors (713988504991).

2821110106625 is an equidigital number, since it uses as much as digits as its factorization.

2821110106625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91430 (or 91420 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 2821110106625 in words is "two trillion, eight hundred twenty-one billion, one hundred ten million, one hundred six thousand, six hundred twenty-five".