72219001250 has 90 divisors (see below), whose sum is σ = 149007792087. Its totient is φ = 26223450000.

The previous prime is 72219001241. The next prime is 72219001277. The reversal of 72219001250 is 5210091227.

It can be written as a sum of positive squares in 3 ways, for example, as 16697033089 + 55521968161 = 129217^2 + 235631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=190025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 104513405 + ... + 104514095.

Almost surely, 2^72219001250 is an apocalyptic number.

72219001250 is an abundant number, since it is smaller than the sum of its proper divisors (76788790837).

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

72219001250 is an frugal number, since it uses more digits than its factorization.

72219001250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 72219001250 its reverse (5210091227), we get a palindrome (77429092477).

The spelling of 72219001250 in words is "seventy-two billion, two hundred nineteen million, one thousand, two hundred fifty".