2011502493 has 48 divisors (see below), whose sum is σ = 3901113216. Its totient is φ = 964552320.

The previous prime is 2011502473. The next prime is 2011502497. The reversal of 2011502493 is 3942051102.

2011502493 is a `hidden beast` number, since 20 + 1 + 150 + 2 + 493 = 666.

It is not a de Polignac number, because 2011502493 - 2⁹ = 2011501981 is a prime.

It is a super-2 number, since 2×2011502493² = 8092284558690430098, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011502497) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102630 + ... + 120647.

It is an arithmetic number, because the mean of its divisors is an integer number (81273192).

Almost surely, 2^2011502493 is an apocalyptic number.

It is an amenable number.

2011502493 is a deficient number, since it is larger than the sum of its proper divisors (1889610723).

2011502493 is a wasteful number, since it uses less digits than its factorization.

2011502493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223314 (or 223311 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2011502493 is about 44849.7769559671. The cubic root of 2011502493 is about 1262.3318063426.

Adding to 2011502493 its reverse (3942051102), we get a palindrome (5953553595).

The spelling of 2011502493 in words is "two billion, eleven million, five hundred two thousand, four hundred ninety-three".