1286208874860 has 576 divisors, whose sum is σ = 4956478356480. Its totient is φ = 241964236800.

The previous prime is 1286208874849. The next prime is 1286208874883. The reversal of 1286208874860 is 684788026821.

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

It is a junction number, because it is equal to n+sod(n) for n = 1286208874794 and 1286208874803.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 29959410 + ... + 30002310.

Almost surely, 2^{1286208874860} is an apocalyptic number.

1286208874860 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 1286208874860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2478239178240).

1286208874860 is an abundant number, since it is smaller than the sum of its proper divisors (3670269481620).

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

1286208874860 is a wasteful number, since it uses less digits than its factorization.

1286208874860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42986 (or 42967 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 1286208874860 in words is "one trillion, two hundred eighty-six billion, two hundred eight million, eight hundred seventy-four thousand, eight hundred sixty".