73026424561 has 32 divisors (see below), whose sum is σ = 79937383680. Its totient is φ = 66450585600.

The previous prime is 73026424519. The next prime is 73026424573. The reversal of 73026424561 is 16542462037.

It is a cyclic number.

It is not a de Polignac number, because 73026424561 - 2⁷ = 73026424433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73026484561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27903325 + ... + 27905941.

It is an arithmetic number, because the mean of its divisors is an integer number (2498043240).

Almost surely, 2^73026424561 is an apocalyptic number.

73026424561 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

73026424561 is a deficient number, since it is larger than the sum of its proper divisors (6910959119).

73026424561 is a wasteful number, since it uses less digits than its factorization.

73026424561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145.

The product of its (nonzero) digits is 241920, while the sum is 40.

Adding to 73026424561 its reverse (16542462037), we get a palindrome (89568886598).

The spelling of 73026424561 in words is "seventy-three billion, twenty-six million, four hundred twenty-four thousand, five hundred sixty-one".