2136720704 has 28 divisors (see below), whose sum is σ = 4250474100. Its totient is φ = 1065735168.

The previous prime is 2136720623. The next prime is 2136720757. The reversal of 2136720704 is 4070276312.

It can be written as a sum of positive squares in 2 ways, for example, as 1818169600 + 318551104 = 42640^2 + 17848^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14639 + ... + 66990.

Almost surely, 2^2136720704 is an apocalyptic number.

It is an amenable number.

2136720704 is a deficient number, since it is larger than the sum of its proper divisors (2113753396).

2136720704 is an equidigital number, since it uses as much as digits as its factorization.

2136720704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82050 (or 82040 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 2136720704 is about 46224.6763536534. The cubic root of 2136720704 is about 1288.0001671746. Note that the first 3 decimals are identical.

The spelling of 2136720704 in words is "two billion, one hundred thirty-six million, seven hundred twenty thousand, seven hundred four".