1299108398280 has 512 divisors, whose sum is σ = 5033174630400. Its totient is φ = 260293017600.

The previous prime is 1299108398219. The next prime is 1299108398303. The reversal of 1299108398280 is 828938019921.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 236070009 + ... + 236075511.

It is an arithmetic number, because the mean of its divisors is an integer number (9830419200).

Almost surely, 2^{1299108398280} is an apocalyptic number.

1299108398280 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 1299108398280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516587315200).

1299108398280 is an abundant number, since it is smaller than the sum of its proper divisors (3734066232120).

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

1299108398280 is a wasteful number, since it uses less digits than its factorization.

1299108398280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445 (or 6441 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 60.

The spelling of 1299108398280 in words is "one trillion, two hundred ninety-nine billion, one hundred eight million, three hundred ninety-eight thousand, two hundred eighty".