6202136987281 has 9 divisors (see below), whose sum is σ = 6219491148873. Its totient is φ = 6184831135140.

The previous prime is 6202136987269. The next prime is 6202136987303. The reversal of 6202136987281 is 1827896312026.

The square root of 6202136987281 is 2490409.

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

It is a de Polignac number, because none of the positive numbers 2^k-6202136987281 is a prime.

It is a super-2 number, since 2×6202136987281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6202136987251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 943861726 + ... + 943868296.

It is an arithmetic number, because the mean of its divisors is an integer number (691054572097).

Almost surely, 2^{6202136987281} is an apocalyptic number.

6202136987281 is the 2490409-th square number.

6202136987281 is the 1245205-th centered octagonal number.

It is an amenable number.

6202136987281 is a deficient number, since it is larger than the sum of its proper divisors (17354161592).

6202136987281 is an frugal number, since it uses more digits than its factorization.

6202136987281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13900 (or 6950 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 6202136987281 in words is "six trillion, two hundred two billion, one hundred thirty-six million, nine hundred eighty-seven thousand, two hundred eighty-one".