2012405770000 has 100 divisors (see below), whose sum is σ = 5158838140236. Its totient is φ = 757611520000.

The previous prime is 2012405769971. The next prime is 2012405770009. The reversal of 2012405770000 is 775042102.

It can be written as a sum of positive squares in 10 ways, for example, as 852623237376 + 1159782532624 = 923376^2 + 1076932^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (2012405770009) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 5748841 + ... + 6088840.

Almost surely, 2^{2012405770000} is an apocalyptic number.

2012405770000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012405770000 is an abundant number, since it is smaller than the sum of its proper divisors (3146432370236).

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

2012405770000 is a wasteful number, since it uses less digits than its factorization.

2012405770000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11837726 (or 11837705 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The spelling of 2012405770000 in words is "two trillion, twelve billion, four hundred five million, seven hundred seventy thousand".