7281788251032 has 96 divisors (see below), whose sum is σ = 20057965387200. Its totient is φ = 2385861835968.

The previous prime is 7281788250991. The next prime is 7281788251043. The reversal of 7281788251032 is 2301528871827.

It is a happy number.

7281788251032 is a `hidden beast` number, since 7 + 2 + 8 + 17 + 8 + 82 + 510 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 7281788251032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40874583 + ... + 41052345.

It is an arithmetic number, because the mean of its divisors is an integer number (208937139450).

Almost surely, 2^{7281788251032} is an apocalyptic number.

7281788251032 is a gapful number since it is divisible by the number (72) 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 7281788251032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10028982693600).

7281788251032 is an abundant number, since it is smaller than the sum of its proper divisors (12776177136168).

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

7281788251032 is a wasteful number, since it uses less digits than its factorization.

7281788251032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187477 (or 187470 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 7281788251032 in words is "seven trillion, two hundred eighty-one billion, seven hundred eighty-eight million, two hundred fifty-one thousand, thirty-two".