1341651940209 has 81 divisors (see below), whose sum is σ = 2380054396473. Its totient is φ = 726057625104.

The previous prime is 1341651940207. The next prime is 1341651940229. The reversal of 1341651940209 is 9020491561431.

The square root of 1341651940209 is 1158297.

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

1341651940209 is a `hidden beast` number, since 1 + 341 + 65 + 1 + 9 + 40 + 209 = 666.

It is not a de Polignac number, because 1341651940209 - 2¹ = 1341651940207 is a prime.

It is a super-2 number, since 2×1341651940209² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1341651940207) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 462159052 + ... + 462161954.

Almost surely, 2^{1341651940209} is an apocalyptic number.

1341651940209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1341651940209 is the 1158297-th square number.

1341651940209 is the 579149-th centered octagonal number.

It is an amenable number.

1341651940209 is a deficient number, since it is larger than the sum of its proper divisors (1038402456264).

1341651940209 is an frugal number, since it uses more digits than its factorization.

1341651940209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864 (or 2932 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 1341651940209 in words is "one trillion, three hundred forty-one billion, six hundred fifty-one million, nine hundred forty thousand, two hundred nine".