7272805437450 has 360 divisors, whose sum is σ = 24373932102432. Its totient is φ = 1574860916160.

The previous prime is 7272805437427. The next prime is 7272805437473. The reversal of 7272805437450 is 547345082727.

It is a happy number.

7272805437450 is a `hidden beast` number, since 7 + 2 + 7 + 28 + 0 + 543 + 74 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (7272805437427) and next prime (7272805437473).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 9879037 + ... + 10589663.

Almost surely, 2^{7272805437450} is an apocalyptic number.

7272805437450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7272805437450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12186966051216).

7272805437450 is an abundant number, since it is smaller than the sum of its proper divisors (17101126664982).

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

7272805437450 is a wasteful number, since it uses less digits than its factorization.

7272805437450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710696 (or 710663 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 54.

The spelling of 7272805437450 in words is "seven trillion, two hundred seventy-two billion, eight hundred five million, four hundred thirty-seven thousand, four hundred fifty".