72264614450 has 54 divisors (see below), whose sum is σ = 156385824093. Its totient is φ = 24771877200.

The previous prime is 72264614449. The next prime is 72264614467. The reversal of 72264614450 is 5441646227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70819322161 + 1445292289 = 266119^2 + 38017^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=190085.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72264614398 and 72264614407.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13303235 + ... + 13308665.

Almost surely, 2^72264614450 is an apocalyptic number.

72264614450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72264614450 is an abundant number, since it is smaller than the sum of its proper divisors (84121209643).

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

72264614450 is an frugal number, since it uses more digits than its factorization.

72264614450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888 (or 5445 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 72264614450 in words is "seventy-two billion, two hundred sixty-four million, six hundred fourteen thousand, four hundred fifty".