731486772900 has 1215 divisors, whose sum is σ = 2792448570681. Its totient is φ = 165525534720.

The previous prime is 731486772889. The next prime is 731486772931. The reversal of 731486772900 is 9277684137.

The square root of 731486772900 is 855270.

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

731486772900 is a `hidden beast` number, since 7 + 3 + 1 + 486 + 7 + 72 + 90 + 0 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 532727733924 + 198759038976 = 729882^2 + 445824^2 .

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 404 ways as a sum of consecutive naturals, for example, 17011320279 + ... + 17011320321.

Almost surely, 2^731486772900 is an apocalyptic number.

731486772900 is the 855270-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731486772900

731486772900 is an abundant number, since it is smaller than the sum of its proper divisors (2060961797781).

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

731486772900 is a wasteful number, since it uses less digits than its factorization.

731486772900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 731486772900 in words is "seven hundred thirty-one billion, four hundred eighty-six million, seven hundred seventy-two thousand, nine hundred".