72294443008 has 24 divisors (see below), whose sum is σ = 144553590090. Its totient is φ = 36147220480.

The previous prime is 72294442993. The next prime is 72294443009. The reversal of 72294443008 is 80034449227.

It can be written as a sum of positive squares in only one way, i.e., 58509804544 + 13784638464 = 241888^2 + 117408^2 .

It is not an unprimeable number, because it can be changed into a prime (72294443009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17647963 + ... + 17652058.

Almost surely, 2^72294443008 is an apocalyptic number.

It is an amenable number.

72294443008 is a deficient number, since it is larger than the sum of its proper divisors (72259147082).

72294443008 is an equidigital number, since it uses as much as digits as its factorization.

72294443008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35300043 (or 35300023 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 72294443008 in words is "seventy-two billion, two hundred ninety-four million, four hundred forty-three thousand, eight".