72413226212 has 6 divisors (see below), whose sum is σ = 126723145878. Its totient is φ = 36206613104.

The previous prime is 72413226199. The next prime is 72413226239. The reversal of 72413226212 is 21262231427.

It can be written as a sum of positive squares in only one way, i.e., 62428020736 + 9985205476 = 249856^2 + 99926^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9051653273 + ... + 9051653280.

It is an arithmetic number, because the mean of its divisors is an integer number (21120524313).

Almost surely, 2^72413226212 is an apocalyptic number.

It is an amenable number.

72413226212 is a deficient number, since it is larger than the sum of its proper divisors (54309919666).

72413226212 is a wasteful number, since it uses less digits than its factorization.

72413226212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103306557 (or 18103306555 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

Adding to 72413226212 its reverse (21262231427), we get a palindrome (93675457639).

The spelling of 72413226212 in words is "seventy-two billion, four hundred thirteen million, two hundred twenty-six thousand, two hundred twelve".