730537609681 has 8 divisors (see below), whose sum is σ = 797375636064. Its totient is φ = 663770502720.

The previous prime is 730537609651. The next prime is 730537609699. The reversal of 730537609681 is 186906735037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 730537609681 - 2²¹ = 730535512529 is a prime.

It is a super-2 number, since 2×730537609681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730537609621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17708311 + ... + 17749516.

It is an arithmetic number, because the mean of its divisors is an integer number (99671954508).

Almost surely, 2^730537609681 is an apocalyptic number.

It is an amenable number.

730537609681 is a deficient number, since it is larger than the sum of its proper divisors (66838026383).

730537609681 is a wasteful number, since it uses less digits than its factorization.

730537609681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35459711.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 730537609681 in words is "seven hundred thirty billion, five hundred thirty-seven million, six hundred nine thousand, six hundred eighty-one".