623324040420530 has 16 divisors (see below), whose sum is σ = 1132276697279640. Its totient is φ = 247042188496512.

The previous prime is 623324040420527. The next prime is 623324040420541. The reversal of 623324040420530 is 35024040423326.

It can be written as a sum of positive squares in 4 ways, for example, as 538372665773881 + 84951374646649 = 23202859^2 + 9216907^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285928457819 + ... + 285928459998.

Almost surely, 2^{623324040420530} is an apocalyptic number.

623324040420530 is a deficient number, since it is larger than the sum of its proper divisors (508952656859110).

623324040420530 is a wasteful number, since it uses less digits than its factorization.

623324040420530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571856917933.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 623324040420530 its reverse (35024040423326), we get a palindrome (658348080843856).

The spelling of 623324040420530 in words is "six hundred twenty-three trillion, three hundred twenty-four billion, forty million, four hundred twenty thousand, five hundred thirty".