1047279843072 has 144 divisors (see below), whose sum is σ = 3131790228000. Its totient is φ = 345170681856.

The previous prime is 1047279843031. The next prime is 1047279843143. The reversal of 1047279843072 is 2703489727401.

1047279843072 is a `hidden beast` number, since 1 + 0 + 4 + 72 + 79 + 8 + 430 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 236047 + ... + 1466382.

It is an arithmetic number, because the mean of its divisors is an integer number (21748543250).

Almost surely, 2^{1047279843072} is an apocalyptic number.

1047279843072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1047279843072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565895114000).

1047279843072 is an abundant number, since it is smaller than the sum of its proper divisors (2084510384928).

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

1047279843072 is an equidigital number, since it uses as much as digits as its factorization.

1047279843072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702543 (or 1702523 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 1047279843072 in words is "one trillion, forty-seven billion, two hundred seventy-nine million, eight hundred forty-three thousand, seventy-two".