1361888220418 has 32 divisors (see below), whose sum is σ = 2301645196800. Its totient is φ = 598755360000.

The previous prime is 1361888220389. The next prime is 1361888220503. The reversal of 1361888220418 is 8140228881631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771258 + ... + 1821706.

It is an arithmetic number, because the mean of its divisors is an integer number (71926412400).

Almost surely, 2^{1361888220418} is an apocalyptic number.

1361888220418 is a deficient number, since it is larger than the sum of its proper divisors (939756976382).

1361888220418 is a wasteful number, since it uses less digits than its factorization.

1361888220418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052394.

The product of its (nonzero) digits is 1179648, while the sum is 52.

The spelling of 1361888220418 in words is "one trillion, three hundred sixty-one billion, eight hundred eighty-eight million, two hundred twenty thousand, four hundred eighteen".