1361775578377 has 8 divisors (see below), whose sum is σ = 1396606095360. Its totient is φ = 1327022036640.

The previous prime is 1361775578351. The next prime is 1361775578407. The reversal of 1361775578377 is 7738755771631.

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

It is a cyclic number.

It is not a de Polignac number, because 1361775578377 - 2³⁹ = 812019764489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361775578677) 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, 19207977 + ... + 19278742.

It is an arithmetic number, because the mean of its divisors is an integer number (174575761920).

Almost surely, 2^{1361775578377} is an apocalyptic number.

It is an amenable number.

1361775578377 is a deficient number, since it is larger than the sum of its proper divisors (34830516983).

1361775578377 is an equidigital number, since it uses as much as digits as its factorization.

1361775578377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38487623.

The product of its digits is 181515600, while the sum is 67.

The spelling of 1361775578377 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-five million, five hundred seventy-eight thousand, three hundred seventy-seven".