730281778276 has 12 divisors (see below), whose sum is σ = 1278002316780. Its totient is φ = 365138259200.

The previous prime is 730281778229. The next prime is 730281778397. The reversal of 730281778276 is 672877182037.

It can be written as a sum of positive squares in 2 ways, for example, as 226124976676 + 504156801600 = 475526^2 + 710040^2 .

It is a super-2 number, since 2×730281778276² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 730281778276.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52476 + ... + 1209676.

It is an arithmetic number, because the mean of its divisors is an integer number (106500193065).

Almost surely, 2^730281778276 is an apocalyptic number.

It is an amenable number.

730281778276 is a deficient number, since it is larger than the sum of its proper divisors (547720538504).

730281778276 is a wasteful number, since it uses less digits than its factorization.

730281778276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314974 (or 1314972 counting only the distinct ones).

The product of its (nonzero) digits is 11063808, while the sum is 58.

The spelling of 730281778276 in words is "seven hundred thirty billion, two hundred eighty-one million, seven hundred seventy-eight thousand, two hundred seventy-six".