2129085650 has 24 divisors (see below), whose sum is σ = 3969589680. Its totient is φ = 849593360.

The previous prime is 2129085613. The next prime is 2129085653. The reversal of 2129085650 is 565809212.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2129085653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29864 + ... + 71763.

It is an arithmetic number, because the mean of its divisors is an integer number (165399570).

Almost surely, 2^2129085650 is an apocalyptic number.

2129085650 is a deficient number, since it is larger than the sum of its proper divisors (1840504030).

2129085650 is a wasteful number, since it uses less digits than its factorization.

2129085650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102058 (or 102053 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 2129085650 is about 46142.0161024635. The cubic root of 2129085650 is about 1286.4642173742.

The spelling of 2129085650 in words is "two billion, one hundred twenty-nine million, eighty-five thousand, six hundred fifty".