212446156403409 has 16 divisors (see below), whose sum is σ = 298170452873280. Its totient is φ = 134176335874560.

The previous prime is 212446156403401. The next prime is 212446156403419. The reversal of 212446156403409 is 904304651644212.

It is not a de Polignac number, because 212446156403409 - 2³ = 212446156403401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212446156403401) 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, 48126489 + ... + 52355049.

It is an arithmetic number, because the mean of its divisors is an integer number (18635653304580).

Almost surely, 2^{212446156403409} is an apocalyptic number.

It is an amenable number.

212446156403409 is a deficient number, since it is larger than the sum of its proper divisors (85724296469871).

212446156403409 is a wasteful number, since it uses less digits than its factorization.

212446156403409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110000.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 212446156403409 in words is "two hundred twelve trillion, four hundred forty-six billion, one hundred fifty-six million, four hundred three thousand, four hundred nine".