72281895010 has 32 divisors (see below), whose sum is σ = 143902593072. Its totient is φ = 25967381760.

The previous prime is 72281894981. The next prime is 72281895071. The reversal of 72281895010 is 1059818227.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 34820679609 + 37461215401 = 186603^2 + 193549^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7508901 + ... + 7518520.

Almost surely, 2^72281895010 is an apocalyptic number.

72281895010 is a deficient number, since it is larger than the sum of its proper divisors (71620698062).

72281895010 is a wasteful number, since it uses less digits than its factorization.

72281895010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15027478.

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 72281895010 in words is "seventy-two billion, two hundred eighty-one million, eight hundred ninety-five thousand, ten".