1198435962361 has 27 divisors (see below), whose sum is σ = 1377371025093. Its totient is φ = 1041877387320.

The previous prime is 1198435962323. The next prime is 1198435962371. The reversal of 1198435962361 is 1632695348911.

The square root of 1198435962361 is 1094731.

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

It is not a de Polignac number, because 1198435962361 - 2¹⁷ = 1198435831289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1198435962296 and 1198435962305.

It is not an unprimeable number, because it can be changed into a prime (1198435962371) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 276964780 + ... + 276969106.

Almost surely, 2^{1198435962361} is an apocalyptic number.

1198435962361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1198435962361 is the 1094731-st square number.

1198435962361 is the 547366-th centered octagonal number.

It is an amenable number.

1198435962361 is a deficient number, since it is larger than the sum of its proper divisors (178935062732).

1198435962361 is an frugal number, since it uses more digits than its factorization.

1198435962361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722 (or 4361 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 58.

The spelling of 1198435962361 in words is "one trillion, one hundred ninety-eight billion, four hundred thirty-five million, nine hundred sixty-two thousand, three hundred sixty-one".