7240123347761 has 4 divisors (see below), whose sum is σ = 7310415807552. Its totient is φ = 7169830887972.

The previous prime is 7240123347757. The next prime is 7240123347851. The reversal of 7240123347761 is 1677433210427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7240123347761 - 2² = 7240123347757 is a prime.

It is a super-3 number, since 3×7240123347761³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7240123347361) 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, 35146229741 + ... + 35146229946.

It is an arithmetic number, because the mean of its divisors is an integer number (1827603951888).

Almost surely, 2^{7240123347761} is an apocalyptic number.

It is an amenable number.

7240123347761 is a deficient number, since it is larger than the sum of its proper divisors (70292459791).

7240123347761 is a wasteful number, since it uses less digits than its factorization.

7240123347761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70292459790.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 7240123347761 in words is "seven trillion, two hundred forty billion, one hundred twenty-three million, three hundred forty-seven thousand, seven hundred sixty-one".