2191802676 has 24 divisors (see below), whose sum is σ = 5844807360. Its totient is φ = 626229312.

The previous prime is 2191802671. The next prime is 2191802677. The reversal of 2191802676 is 6762081912.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2191802671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13046361 + ... + 13046528.

It is an arithmetic number, because the mean of its divisors is an integer number (243533640).

Almost surely, 2^2191802676 is an apocalyptic number.

It is an amenable number.

2191802676 is an abundant number, since it is smaller than the sum of its proper divisors (3653004684).

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

2191802676 is a wasteful number, since it uses less digits than its factorization.

2191802676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26092903 (or 26092901 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 2191802676 is about 46816.6922795705. The cubic root of 2191802676 is about 1298.9740773693.

The spelling of 2191802676 in words is "two billion, one hundred ninety-one million, eight hundred two thousand, six hundred seventy-six".