2051513989799 has 2 divisors, whose sum is σ = 2051513989800. Its totient is φ = 2051513989798.

The previous prime is 2051513989757. The next prime is 2051513989829. The reversal of 2051513989799 is 9979893151502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051513989799 is a prime.

It is a super-2 number, since 2×2051513989799² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051513989099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025756994899 + 1025756994900.

It is an arithmetic number, because the mean of its divisors is an integer number (1025756994900).

Almost surely, 2^{2051513989799} is an apocalyptic number.

2051513989799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051513989799 is an equidigital number, since it uses as much as digits as its factorization.

2051513989799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55112400, while the sum is 68.

The spelling of 2051513989799 in words is "two trillion, fifty-one billion, five hundred thirteen million, nine hundred eighty-nine thousand, seven hundred ninety-nine".