2102686704 has 60 divisors (see below), whose sum is σ = 5891376400. Its totient is φ = 700088832.

The previous prime is 2102686643. The next prime is 2102686709. The reversal of 2102686704 is 4076862012.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102686709) 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, 124392 + ... + 140280.

Almost surely, 2^2102686704 is an apocalyptic number.

2102686704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2102686704 is an abundant number, since it is smaller than the sum of its proper divisors (3788689696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102686704 is a wasteful number, since it uses less digits than its factorization.

2102686704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16822 (or 16813 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 2102686704 is about 45855.0619234126. The cubic root of 2102686704 is about 1281.1250492656.

The spelling of 2102686704 in words is "two billion, one hundred two million, six hundred eighty-six thousand, seven hundred four".