72702641228 has 18 divisors (see below), whose sum is σ = 148001805756. Its totient is φ = 31158274728.

The previous prime is 72702641227. The next prime is 72702641243. The reversal of 72702641228 is 82214620727.

It is not an unprimeable number, because it can be changed into a prime (72702641227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 185465726 + ... + 185466117.

It is an arithmetic number, because the mean of its divisors is an integer number (8222322542).

Almost surely, 2^72702641228 is an apocalyptic number.

It is an amenable number.

72702641228 is an abundant number, since it is smaller than the sum of its proper divisors (75299164528).

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

72702641228 is a wasteful number, since it uses less digits than its factorization.

72702641228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370931861 (or 370931852 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 72702641228 in words is "seventy-two billion, seven hundred two million, six hundred forty-one thousand, two hundred twenty-eight".