612112523623 has 16 divisors (see below), whose sum is σ = 618261672960. Its totient is φ = 605997582400.

The previous prime is 612112523621. The next prime is 612112523767. The reversal of 612112523623 is 326325211216.

It is a cyclic number.

It is not a de Polignac number, because 612112523623 - 2¹ = 612112523621 is a prime.

It is a super-2 number, since 2×612112523623² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612112523621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65736138 + ... + 65745448.

It is an arithmetic number, because the mean of its divisors is an integer number (38641354560).

Almost surely, 2^612112523623 is an apocalyptic number.

612112523623 is a deficient number, since it is larger than the sum of its proper divisors (6149149337).

612112523623 is a wasteful number, since it uses less digits than its factorization.

612112523623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11078.

The product of its digits is 25920, while the sum is 34.

Adding to 612112523623 its reverse (326325211216), we get a palindrome (938437734839).

The spelling of 612112523623 in words is "six hundred twelve billion, one hundred twelve million, five hundred twenty-three thousand, six hundred twenty-three".