1279484498880 has 672 divisors, whose sum is σ = 5133986582400. Its totient is φ = 286404378624.

The previous prime is 1279484498863. The next prime is 1279484498893. The reversal of 1279484498880 is 888944849721.

1279484498880 is a `hidden beast` number, since 1 + 27 + 9 + 4 + 8 + 449 + 88 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

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

It is a junction number, because it is equal to n+sod(n) for n = 1279484498799 and 1279484498808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 992617276 + ... + 992618564.

Almost surely, 2^{1279484498880} is an apocalyptic number.

1279484498880 is a gapful number since it is divisible by the number (10) 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 1279484498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566993291200).

1279484498880 is an abundant number, since it is smaller than the sum of its proper divisors (3854502083520).

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

1279484498880 is a wasteful number, since it uses less digits than its factorization.

1279484498880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 297271296, while the sum is 72.

The spelling of 1279484498880 in words is "one trillion, two hundred seventy-nine billion, four hundred eighty-four million, four hundred ninety-eight thousand, eight hundred eighty".