6992359510249 has 9 divisors (see below), whose sum is σ = 7241869116183. Its totient is φ = 6751169624472.

The previous prime is 6992359510237. The next prime is 6992359510261. The reversal of 6992359510249 is 9420159532996.

The square root of 6992359510249 is 2644307.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (6992359510237) and next prime (6992359510261).

It can be written as a sum of positive squares in only one way, i.e., 3666623714649 + 3325735795600 = 1914843^2 + 1823660^2 .

It is not a de Polignac number, because 6992359510249 - 2³¹ = 6990212026601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6992359580249) 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 8 ways as a sum of consecutive naturals, for example, 76639312 + ... + 76730494.

Almost surely, 2^{6992359510249} is an apocalyptic number.

6992359510249 is the 2644307-th square number.

6992359510249 is the 1322154-th centered octagonal number.

It is an amenable number.

6992359510249 is a deficient number, since it is larger than the sum of its proper divisors (249509605934).

6992359510249 is an frugal number, since it uses more digits than its factorization.

6992359510249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182424 (or 91212 counting only the distinct ones).

The product of its (nonzero) digits is 47239200, while the sum is 64.

Multiplying 6992359510249 by its sum of digits (64), we get a square (447511008655936 = 21154456²).

The spelling of 6992359510249 in words is "six trillion, nine hundred ninety-two billion, three hundred fifty-nine million, five hundred ten thousand, two hundred forty-nine".