1298098784540 has 48 divisors (see below), whose sum is σ = 2962045470720. Its totient is φ = 476043013440.

The previous prime is 1298098784497. The next prime is 1298098784579. The reversal of 1298098784540 is 454878908921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55085792 + ... + 55109351.

It is an arithmetic number, because the mean of its divisors is an integer number (61709280640).

Almost surely, 2^{1298098784540} is an apocalyptic number.

1298098784540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298098784540 is an abundant number, since it is smaller than the sum of its proper divisors (1663946686180).

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

1298098784540 is a wasteful number, since it uses less digits than its factorization.

1298098784540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110195202 (or 110195200 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 65.

The spelling of 1298098784540 in words is "one trillion, two hundred ninety-eight billion, ninety-eight million, seven hundred eighty-four thousand, five hundred forty".