72222286508 has 6 divisors (see below), whose sum is σ = 126389001396. Its totient is φ = 36111143252.

The previous prime is 72222286469. The next prime is 72222286511. The reversal of 72222286508 is 80568222227.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027785810 + ... + 9027785817.

It is an arithmetic number, because the mean of its divisors is an integer number (21064833566).

Almost surely, 2^72222286508 is an apocalyptic number.

It is an amenable number.

72222286508 is a deficient number, since it is larger than the sum of its proper divisors (54166714888).

72222286508 is a wasteful number, since it uses less digits than its factorization.

72222286508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18055571631 (or 18055571629 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 72222286508 in words is "seventy-two billion, two hundred twenty-two million, two hundred eighty-six thousand, five hundred eight".