1098828391744 has 28 divisors (see below), whose sum is σ = 2180574760000. Its totient is φ = 549392231808.

The previous prime is 1098828391699. The next prime is 1098828391813. The reversal of 1098828391744 is 4471938288901.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333747 + ... + 1994125.

It is an arithmetic number, because the mean of its divisors is an integer number (77877670000).

Almost surely, 2^{1098828391744} is an apocalyptic number.

It is an amenable number.

1098828391744 is a deficient number, since it is larger than the sum of its proper divisors (1081746368256).

1098828391744 is an equidigital number, since it uses as much as digits as its factorization.

1098828391744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686390 (or 686380 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 64.

It can be divided in two parts, 109882 and 8391744, that added together give a triangular number (8501626 = T₄₁₂₃).

The spelling of 1098828391744 in words is "one trillion, ninety-eight billion, eight hundred twenty-eight million, three hundred ninety-one thousand, seven hundred forty-four".