7124296561 has 4 divisors (see below), whose sum is σ = 7126446400. Its totient is φ = 7122146724.

The previous prime is 7124296559. The next prime is 7124296657. The reversal of 7124296561 is 1656924217.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1656924217 = 13 ⋅127455709.

It is a cyclic number.

It is not a de Polignac number, because 7124296561 - 2¹ = 7124296559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7124296511) 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, 1069941 + ... + 1076578.

It is an arithmetic number, because the mean of its divisors is an integer number (1781611600).

Almost surely, 2^7124296561 is an apocalyptic number.

It is an amenable number.

7124296561 is a deficient number, since it is larger than the sum of its proper divisors (2149839).

7124296561 is a wasteful number, since it uses less digits than its factorization.

7124296561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149838.

The product of its digits is 181440, while the sum is 43.

The square root of 7124296561 is about 84405.5481647978. The cubic root of 7124296561 is about 1924.1872375709.

The spelling of 7124296561 in words is "seven billion, one hundred twenty-four million, two hundred ninety-six thousand, five hundred sixty-one".