1361825363866 has 16 divisors (see below), whose sum is σ = 2232819600480. Its totient is φ = 617795391280.

The previous prime is 1361825363861. The next prime is 1361825363881. The reversal of 1361825363866 is 6683635281631.

It is a self number, because there is not a number n which added to its sum of digits gives 1361825363866.

It is not an unprimeable number, because it can be changed into a prime (1361825363861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60795436 + ... + 60817831.

It is an arithmetic number, because the mean of its divisors is an integer number (139551225030).

Almost surely, 2^{1361825363866} is an apocalyptic number.

1361825363866 is a deficient number, since it is larger than the sum of its proper divisors (870994236614).

1361825363866 is a wasteful number, since it uses less digits than its factorization.

1361825363866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121613789.

The product of its digits is 22394880, while the sum is 58.

The spelling of 1361825363866 in words is "one trillion, three hundred sixty-one billion, eight hundred twenty-five million, three hundred sixty-three thousand, eight hundred sixty-six".