1286986567940 has 48 divisors (see below), whose sum is σ = 2837140508160. Its totient is φ = 489744464640.

The previous prime is 1286986567891. The next prime is 1286986567963. The reversal of 1286986567940 is 497656896821.

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, 17554817 + ... + 17627976.

It is an arithmetic number, because the mean of its divisors is an integer number (59107093920).

Almost surely, 2^{1286986567940} is an apocalyptic number.

1286986567940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1286986567940 is an abundant number, since it is smaller than the sum of its proper divisors (1550153940220).

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

1286986567940 is a wasteful number, since it uses less digits than its factorization.

1286986567940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35182892 (or 35182890 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 71.

The spelling of 1286986567940 in words is "one trillion, two hundred eighty-six billion, nine hundred eighty-six million, five hundred sixty-seven thousand, nine hundred forty".