1098779700479 has 8 divisors (see below), whose sum is σ = 1100782702320. Its totient is φ = 1096776881856.

The previous prime is 1098779700463. The next prime is 1098779700497. The reversal of 1098779700479 is 9740079778901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098779700479 - 2⁴ = 1098779700463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098779700439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19416077 + ... + 19472585.

It is an arithmetic number, because the mean of its divisors is an integer number (137597837790).

Almost surely, 2^{1098779700479} is an apocalyptic number.

1098779700479 is a deficient number, since it is larger than the sum of its proper divisors (2003001841).

1098779700479 is an equidigital number, since it uses as much as digits as its factorization.

1098779700479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91609.

The product of its (nonzero) digits is 56010528, while the sum is 68.

The spelling of 1098779700479 in words is "one trillion, ninety-eight billion, seven hundred seventy-nine million, seven hundred thousand, four hundred seventy-nine".