2011001010978 has 8 divisors (see below), whose sum is σ = 4022002021968. Its totient is φ = 670333670324.

The previous prime is 2011001010961. The next prime is 2011001010979. The reversal of 2011001010978 is 8790101001102.

It is a sphenic number, since it is the product of 3 distinct primes.

2011001010978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2011001010979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167583417576 + ... + 167583417587.

It is an arithmetic number, because the mean of its divisors is an integer number (502750252746).

Almost surely, 2^{2011001010978} is an apocalyptic number.

2011001010978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2011001010978 is a wasteful number, since it uses less digits than its factorization.

2011001010978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335166835168.

The product of its (nonzero) digits is 1008, while the sum is 30.

The spelling of 2011001010978 in words is "two trillion, eleven billion, one million, ten thousand, nine hundred seventy-eight".