7230121745 has 48 divisors (see below), whose sum is σ = 11025740736. Its totient is φ = 4500720000.

The previous prime is 7230121741. The next prime is 7230121757. The reversal of 7230121745 is 5471210327.

It is not a de Polignac number, because 7230121745 - 2² = 7230121741 is a prime.

It is a super-3 number, since 3×7230121745³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7230121741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2534570 + ... + 2537420.

It is an arithmetic number, because the mean of its divisors is an integer number (229702932).

Almost surely, 2^7230121745 is an apocalyptic number.

It is an amenable number.

7230121745 is a deficient number, since it is larger than the sum of its proper divisors (3795618991).

7230121745 is a wasteful number, since it uses less digits than its factorization.

7230121745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 7230121745 is about 85030.1225742972. The cubic root of 7230121745 is about 1933.6678213543.

The spelling of 7230121745 in words is "seven billion, two hundred thirty million, one hundred twenty-one thousand, seven hundred forty-five".