2130661790 has 16 divisors (see below), whose sum is σ = 3845479968. Its totient is φ = 849978336.

The previous prime is 2130661777. The next prime is 2130661823. The reversal of 2130661790 is 971660312.

It is a self number, because there is not a number n which added to its sum of digits gives 2130661790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281882 + ... + 289341.

It is an arithmetic number, because the mean of its divisors is an integer number (240342498).

Almost surely, 2^2130661790 is an apocalyptic number.

2130661790 is a deficient number, since it is larger than the sum of its proper divisors (1714818178).

2130661790 is a wasteful number, since it uses less digits than its factorization.

2130661790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571603.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2130661790 is about 46159.0921704489. The cubic root of 2130661790 is about 1286.7815911051.

The spelling of 2130661790 in words is "two billion, one hundred thirty million, six hundred sixty-one thousand, seven hundred ninety".