7272254545920 has 4032 divisors, whose sum is σ = 34720225053696. Its totient is φ = 1444738498560.

The previous prime is 7272254545877. The next prime is 7272254545939. The reversal of 7272254545920 is 295454522727.

It is a happy number.

7272254545920 is a `hidden beast` number, since 7 + 2 + 7 + 2 + 2 + 5 + 4 + 545 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (4032).

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 196547420142 + ... + 196547420178.

It is an arithmetic number, because the mean of its divisors is an integer number (8611166928).

Almost surely, 2^{7272254545920} is an apocalyptic number.

7272254545920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7272254545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17360112526848).

7272254545920 is an abundant number, since it is smaller than the sum of its proper divisors (27447970507776).

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

7272254545920 is a wasteful number, since it uses less digits than its factorization.

7272254545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 54.

The spelling of 7272254545920 in words is "seven trillion, two hundred seventy-two billion, two hundred fifty-four million, five hundred forty-five thousand, nine hundred twenty".