1298098784613 has 4 divisors (see below), whose sum is σ = 1730798379488. Its totient is φ = 865399189740.

The previous prime is 1298098784611. The next prime is 1298098784621. The reversal of 1298098784613 is 3164878908921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1298098784613 - 2¹ = 1298098784611 is a prime.

It is a super-2 number, since 2×1298098784613² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298098784611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216349797433 + ... + 216349797438.

It is an arithmetic number, because the mean of its divisors is an integer number (432699594872).

Almost surely, 2^{1298098784613} is an apocalyptic number.

It is an amenable number.

1298098784613 is a deficient number, since it is larger than the sum of its proper divisors (432699594875).

1298098784613 is an equidigital number, since it uses as much as digits as its factorization.

1298098784613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432699594874.

The product of its (nonzero) digits is 41803776, while the sum is 66.

The spelling of 1298098784613 in words is "one trillion, two hundred ninety-eight billion, ninety-eight million, seven hundred eighty-four thousand, six hundred thirteen".