123456801234568 has 32 divisors (see below), whose sum is σ = 245099691176760. Its totient is φ = 58096931880960.

The previous prime is 123456801234521. The next prime is 123456801234587. The reversal of 123456801234568 is 865432108654321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 107996947896964 + 15459853337604 = 10392158^2 + 3931902^2 .

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, 18046480 + ... + 23928832.

Almost surely, 2^{123456801234568} is an apocalyptic number.

It is an amenable number.

123456801234568 is a deficient number, since it is larger than the sum of its proper divisors (121642889942192).

123456801234568 is a wasteful number, since it uses less digits than its factorization.

123456801234568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6036697 (or 6036693 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 58.

Adding to 123456801234568 its reverse (865432108654321), we get a palindrome (988888909888889).

The spelling of 123456801234568 in words is "one hundred twenty-three trillion, four hundred fifty-six billion, eight hundred one million, two hundred thirty-four thousand, five hundred sixty-eight".