1298803279338 has 12 divisors (see below), whose sum is σ = 2814073771938. Its totient is φ = 432934426440.

The previous prime is 1298803279337. The next prime is 1298803279339. The reversal of 1298803279338 is 8339723088921.

1298803279338 is a `hidden beast` number, since 1 + 29 + 8 + 8 + 0 + 3 + 279 + 338 = 666.

It is an interprime number because it is at equal distance from previous prime (1298803279337) and next prime (1298803279339).

It can be written as a sum of positive squares in only one way, i.e., 1259550556209 + 39252723129 = 1122297^2 + 198123^2 .

It is not an unprimeable number, because it can be changed into a prime (1298803279337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36077868853 + ... + 36077868888.

Almost surely, 2^{1298803279338} is an apocalyptic number.

1298803279338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1298803279338 is an abundant number, since it is smaller than the sum of its proper divisors (1515270492600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298803279338 is a wasteful number, since it uses less digits than its factorization.

1298803279338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72155737749 (or 72155737746 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 1298803279338 in words is "one trillion, two hundred ninety-eight billion, eight hundred three million, two hundred seventy-nine thousand, three hundred thirty-eight".