12406405602 has 16 divisors (see below), whose sum is σ = 24864618240. Its totient is φ = 4126834032.

The previous prime is 12406405559. The next prime is 12406405603. The reversal of 12406405602 is 20650460421.

It is a super-2 number, since 2×12406405602² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12406405602.

It is not an unprimeable number, because it can be changed into a prime (12406405603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155513 + ... + 2161260.

It is an arithmetic number, because the mean of its divisors is an integer number (1554038640).

Almost surely, 2^12406405602 is an apocalyptic number.

12406405602 is an abundant number, since it is smaller than the sum of its proper divisors (12458212638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12406405602 is a wasteful number, since it uses less digits than its factorization.

12406405602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317257.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 12406405602 in words is "twelve billion, four hundred six million, four hundred five thousand, six hundred two".