2787356120912 has 120 divisors (see below), whose sum is σ = 6048060816000. Its totient is φ = 1234153267200.

The previous prime is 2787356120911. The next prime is 2787356120933. The reversal of 2787356120912 is 2190216537872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787356120911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199104089 + ... + 199118087.

It is an arithmetic number, because the mean of its divisors is an integer number (50400506800).

Almost surely, 2^{2787356120912} is an apocalyptic number.

2787356120912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2787356120912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3024030408000).

2787356120912 is an abundant number, since it is smaller than the sum of its proper divisors (3260704695088).

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

2787356120912 is a wasteful number, since it uses less digits than its factorization.

2787356120912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14773 (or 14726 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 2787356120912 in words is "two trillion, seven hundred eighty-seven billion, three hundred fifty-six million, one hundred twenty thousand, nine hundred twelve".