2011346878458 has 32 divisors (see below), whose sum is σ = 4122389013120. Its totient is φ = 653845629440.

The previous prime is 2011346878397. The next prime is 2011346878487. The reversal of 2011346878458 is 8548786431102.

It is a junction number, because it is equal to n+sod(n) for n = 2011346878398 and 2011346878407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925110 + ... + 2208737.

It is an arithmetic number, because the mean of its divisors is an integer number (128824656660).

Almost surely, 2^{2011346878458} is an apocalyptic number.

2011346878458 is an abundant number, since it is smaller than the sum of its proper divisors (2111042134662).

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

2011346878458 is a wasteful number, since it uses less digits than its factorization.

2011346878458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136502.

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 2011346878458 in words is "two trillion, eleven billion, three hundred forty-six million, eight hundred seventy-eight thousand, four hundred fifty-eight".