72262488426228 has 72 divisors (see below), whose sum is σ = 188963718751080. Its totient is φ = 23256712577280.

The previous prime is 72262488426221. The next prime is 72262488426341. The reversal of 72262488426228 is 82262488426227.

72262488426228 is a `hidden beast` number, since 72 + 2 + 6 + 2 + 488 + 4 + 2 + 62 + 28 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 42811006032144 + 29451482394084 = 6543012^2 + 5426922^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72262488426221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225323926 + ... + 225644402.

It is an arithmetic number, because the mean of its divisors is an integer number (2624496093765).

Almost surely, 2^{72262488426228} is an apocalyptic number.

It is an amenable number.

72262488426228 is an abundant number, since it is smaller than the sum of its proper divisors (116701230324852).

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

72262488426228 is a wasteful number, since it uses less digits than its factorization.

72262488426228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536497 (or 536492 counting only the distinct ones).

The product of its digits is 132120576, while the sum is 63.

Subtracting 72262488426228 from its reverse (82262488426227), we obtain a palindrome (9999999999999).

The spelling of 72262488426228 in words is "seventy-two trillion, two hundred sixty-two billion, four hundred eighty-eight million, four hundred twenty-six thousand, two hundred twenty-eight".