2723640402228 has 12 divisors (see below), whose sum is σ = 6355160938560. Its totient is φ = 907880134072.

The previous prime is 2723640402227. The next prime is 2723640402337. The reversal of 2723640402228 is 8222040463272.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2723640402228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723640402227) 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, 113485016748 + ... + 113485016771.

It is an arithmetic number, because the mean of its divisors is an integer number (529596744880).

Almost surely, 2^{2723640402228} is an apocalyptic number.

It is an amenable number.

2723640402228 is an abundant number, since it is smaller than the sum of its proper divisors (3631520536332).

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

2723640402228 is a wasteful number, since it uses less digits than its factorization.

2723640402228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226970033526 (or 226970033524 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 42.

The spelling of 2723640402228 in words is "two trillion, seven hundred twenty-three billion, six hundred forty million, four hundred two thousand, two hundred twenty-eight".