7281740340900 has 135 divisors (see below), whose sum is σ = 23605312738161. Its totient is φ = 1941732660960.

The previous prime is 7281740340863. The next prime is 7281740340929. The reversal of 7281740340900 is 90430471827.

The square root of 7281740340900 is 2698470.

It is a perfect power (a square), and thus also a powerful number.

7281740340900 is a `hidden beast` number, since 72 + 8 + 174 + 0 + 3 + 409 + 0 + 0 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2621426522724 + 4660313818176 = 1619082^2 + 2158776^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 242847309 + ... + 242877291.

Almost surely, 2^{7281740340900} is an apocalyptic number.

7281740340900 is the 2698470-th square number.

It is an amenable number.

7281740340900 is an abundant number, since it is smaller than the sum of its proper divisors (16323572397261).

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

7281740340900 is an frugal number, since it uses more digits than its factorization.

7281740340900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59992 (or 29993 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 7281740340900 in words is "seven trillion, two hundred eighty-one billion, seven hundred forty million, three hundred forty thousand, nine hundred".