12450355402 has 4 divisors (see below), whose sum is σ = 18675533106. Its totient is φ = 6225177700.

The previous prime is 12450355387. The next prime is 12450355409. The reversal of 12450355402 is 20455305421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7399268361 + 5051087041 = 86019^2 + 71071^2 .

It is a super-2 number, since 2×12450355402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12450355409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112588849 + ... + 3112588852.

Almost surely, 2^12450355402 is an apocalyptic number.

12450355402 is a deficient number, since it is larger than the sum of its proper divisors (6225177704).

12450355402 is an equidigital number, since it uses as much as digits as its factorization.

12450355402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225177703.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 12450355402 in words is "twelve billion, four hundred fifty million, three hundred fifty-five thousand, four hundred two".