1398854983824 has 45 divisors (see below), whose sum is σ = 3914890821049. Its totient is φ = 466280263680.

The previous prime is 1398854983817. The next prime is 1398854983831. The reversal of 1398854983824 is 4283894588931.

The square root of 1398854983824 is 1182732.

It is a perfect power (a square), and thus also a powerful number.

1398854983824 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 85 + 498 + 38 + 24 = 666.

It is an interprime number because it is at equal distance from previous prime (1398854983817) and next prime (1398854983831).

It can be written as a sum of positive squares in only one way, i.e., 507416878224 + 891438105600 = 712332^2 + 944160^2 .

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14143504 + ... + 14242064.

Almost surely, 2^{1398854983824} is an apocalyptic number.

1398854983824 is the 1182732-nd square number.

It is an amenable number.

1398854983824 is an abundant number, since it is smaller than the sum of its proper divisors (2516035837225).

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

1398854983824 is an frugal number, since it uses more digits than its factorization.

1398854983824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197136 (or 98566 counting only the distinct ones).

The product of its digits is 477757440, while the sum is 72.

The spelling of 1398854983824 in words is "one trillion, three hundred ninety-eight billion, eight hundred fifty-four million, nine hundred eighty-three thousand, eight hundred twenty-four".