7404724219561 has 4 divisors (see below), whose sum is σ = 7576927108432. Its totient is φ = 7232521330692.

The previous prime is 7404724219559. The next prime is 7404724219591. The reversal of 7404724219561 is 1659124274047.

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 7404724219561 - 2¹ = 7404724219559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7404724219499 and 7404724219508.

It is not an unprimeable number, because it can be changed into a prime (7404724219591) 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, 86101444371 + ... + 86101444456.

It is an arithmetic number, because the mean of its divisors is an integer number (1894231777108).

Almost surely, 2^{7404724219561} is an apocalyptic number.

It is an amenable number.

7404724219561 is a deficient number, since it is larger than the sum of its proper divisors (172202888871).

7404724219561 is a wasteful number, since it uses less digits than its factorization.

7404724219561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172202888870.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 7404724219561 in words is "seven trillion, four hundred four billion, seven hundred twenty-four million, two hundred nineteen thousand, five hundred sixty-one".