202011071448909 has 24 divisors (see below), whose sum is σ = 287738260422912. Its totient is φ = 125630344913920.

The previous prime is 202011071448853. The next prime is 202011071448959. The reversal of 202011071448909 is 909844170110202.

It is not a de Polignac number, because 202011071448909 - 2¹² = 202011071444813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011071448959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154451037 + ... + 155753474.

It is an arithmetic number, because the mean of its divisors is an integer number (11989094184288).

Almost surely, 2^{202011071448909} is an apocalyptic number.

It is an amenable number.

202011071448909 is a deficient number, since it is larger than the sum of its proper divisors (85727188974003).

202011071448909 is a wasteful number, since it uses less digits than its factorization.

202011071448909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310204757 (or 310204644 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 202011071448909 in words is "two hundred two trillion, eleven billion, seventy-one million, four hundred forty-eight thousand, nine hundred nine".