7240515872741 has 4 divisors (see below), whose sum is σ = 7490188833900. Its totient is φ = 6990842911584.

The previous prime is 7240515872731. The next prime is 7240515872761. The reversal of 7240515872741 is 1472785150427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4951755364516 + 2288760508225 = 2225254^2 + 1512865^2 .

It is a cyclic number.

It is not a de Polignac number, because 7240515872741 - 2¹⁰ = 7240515871717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240515872731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124836480536 + ... + 124836480593.

It is an arithmetic number, because the mean of its divisors is an integer number (1872547208475).

Almost surely, 2^{7240515872741} is an apocalyptic number.

It is an amenable number.

7240515872741 is a deficient number, since it is larger than the sum of its proper divisors (249672961159).

7240515872741 is a wasteful number, since it uses less digits than its factorization.

7240515872741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249672961158.

The product of its (nonzero) digits is 4390400, while the sum is 53.

The spelling of 7240515872741 in words is "seven trillion, two hundred forty billion, five hundred fifteen million, eight hundred seventy-two thousand, seven hundred forty-one".