1361775578378 has 32 divisors (see below), whose sum is σ = 2153717294400. Its totient is φ = 643988911104.

The previous prime is 1361775578351. The next prime is 1361775578407. The reversal of 1361775578378 is 8738755771631.

It is a super-3 number, since 3×1361775578378³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

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, 59044613 + ... + 59067671.

It is an arithmetic number, because the mean of its divisors is an integer number (67303665450).

Almost surely, 2^{1361775578378} is an apocalyptic number.

1361775578378 is a deficient number, since it is larger than the sum of its proper divisors (791941716022).

1361775578378 is a wasteful number, since it uses less digits than its factorization.

1361775578378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25574.

The product of its digits is 207446400, while the sum is 68.

The spelling of 1361775578378 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-five million, five hundred seventy-eight thousand, three hundred seventy-eight".