2180929902 has 8 divisors (see below), whose sum is σ = 4361859816. Its totient is φ = 726976632.

The previous prime is 2180929859. The next prime is 2180929909. The reversal of 2180929902 is 2099290812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2180929902 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180929909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181744153 + ... + 181744164.

It is an arithmetic number, because the mean of its divisors is an integer number (545232477).

Almost surely, 2^2180929902 is an apocalyptic number.

2180929902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2180929902 is a wasteful number, since it uses less digits than its factorization.

2180929902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363488322.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 2180929902 is about 46700.4272143200. The cubic root of 2180929902 is about 1296.8225956757.

The spelling of 2180929902 in words is "two billion, one hundred eighty million, nine hundred twenty-nine thousand, nine hundred two".