2011857468485 has 16 divisors (see below), whose sum is σ = 2497524989040. Its totient is φ = 1553957368320.

The previous prime is 2011857468461. The next prime is 2011857468499. The reversal of 2011857468485 is 5848647581102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 182541708001 + 1829315760484 = 427249^2 + 1352522^2 .

It is not a de Polignac number, because 2011857468485 - 2¹⁸ = 2011857206341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10808969 + ... + 10993521.

It is an arithmetic number, because the mean of its divisors is an integer number (156095311815).

Almost surely, 2^{2011857468485} is an apocalyptic number.

It is an amenable number.

2011857468485 is a deficient number, since it is larger than the sum of its proper divisors (485667520555).

2011857468485 is a wasteful number, since it uses less digits than its factorization.

2011857468485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259768.

The product of its (nonzero) digits is 17203200, while the sum is 59.

The spelling of 2011857468485 in words is "two trillion, eleven billion, eight hundred fifty-seven million, four hundred sixty-eight thousand, four hundred eighty-five".