1286748827398 has 8 divisors (see below), whose sum is σ = 2043659902392. Its totient is φ = 605528859936.

The previous prime is 1286748827389. The next prime is 1286748827401. The reversal of 1286748827398 is 8937288476821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1286748827398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18922776840 + ... + 18922776907.

It is an arithmetic number, because the mean of its divisors is an integer number (255457487799).

Almost surely, 2^{1286748827398} is an apocalyptic number.

1286748827398 is a deficient number, since it is larger than the sum of its proper divisors (756911074994).

1286748827398 is a wasteful number, since it uses less digits than its factorization.

1286748827398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37845553766.

The product of its digits is 520224768, while the sum is 73.

The spelling of 1286748827398 in words is "one trillion, two hundred eighty-six billion, seven hundred forty-eight million, eight hundred twenty-seven thousand, three hundred ninety-eight".