2011273648512 has 64 divisors (see below), whose sum is σ = 5346765764400. Its totient is φ = 669882415104.

The previous prime is 2011273648511. The next prime is 2011273648541. The reversal of 2011273648512 is 2158463721102.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011273648511) 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, 1642087 + ... + 2592102.

Almost surely, 2^{2011273648512} is an apocalyptic number.

It is an amenable number.

2011273648512 is an abundant number, since it is smaller than the sum of its proper divisors (3335492115888).

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

2011273648512 is a wasteful number, since it uses less digits than its factorization.

2011273648512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235443 (or 4235431 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 2011273648512 in words is "two trillion, eleven billion, two hundred seventy-three million, six hundred forty-eight thousand, five hundred twelve".