378771081161 has 8 divisors (see below), whose sum is σ = 437510981664. Its totient is φ = 324082208320.

The previous prime is 378771081119. The next prime is 378771081187. The reversal of 378771081161 is 161180177873.

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 378771081161 - 2⁶ = 378771081097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378771081191) 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, 1012756715 + ... + 1012757088.

It is an arithmetic number, because the mean of its divisors is an integer number (54688872708).

Almost surely, 2^378771081161 is an apocalyptic number.

It is an amenable number.

378771081161 is a deficient number, since it is larger than the sum of its proper divisors (58739900503).

378771081161 is a wasteful number, since it uses less digits than its factorization.

378771081161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025513831.

The product of its (nonzero) digits is 395136, while the sum is 50.

The spelling of 378771081161 in words is "three hundred seventy-eight billion, seven hundred seventy-one million, eighty-one thousand, one hundred sixty-one".