2056137787387 has 16 divisors (see below), whose sum is σ = 2236169626560. Its totient is φ = 1882682016768.

The previous prime is 2056137787381. The next prime is 2056137787391. The reversal of 2056137787387 is 7837877316502.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2056137787387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2056137787381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5789863 + ... + 6134719.

It is an arithmetic number, because the mean of its divisors is an integer number (139760601660).

Almost surely, 2^{2056137787387} is an apocalyptic number.

2056137787387 is a deficient number, since it is larger than the sum of its proper divisors (180031839173).

2056137787387 is a wasteful number, since it uses less digits than its factorization.

2056137787387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354390.

The product of its (nonzero) digits is 82978560, while the sum is 64.

The spelling of 2056137787387 in words is "two trillion, fifty-six billion, one hundred thirty-seven million, seven hundred eighty-seven thousand, three hundred eighty-seven".