378878120271 has 32 divisors (see below), whose sum is σ = 641848327680. Its totient is φ = 216379755648.

The previous prime is 378878120261. The next prime is 378878120279. The reversal of 378878120271 is 172021878873.

378878120271 is a `hidden beast` number, since 378 + 87 + 8 + 120 + 2 + 71 = 666.

It is not a de Polignac number, because 378878120271 - 2⁷ = 378878120143 is a prime.

It is a super-2 number, since 2×378878120271² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378878120279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228201 + ... + 899906.

It is an arithmetic number, because the mean of its divisors is an integer number (20057760240).

Almost surely, 2^378878120271 is an apocalyptic number.

378878120271 is a deficient number, since it is larger than the sum of its proper divisors (262970207409).

378878120271 is a wasteful number, since it uses less digits than its factorization.

378878120271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129900 (or 1129894 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The spelling of 378878120271 in words is "three hundred seventy-eight billion, eight hundred seventy-eight million, one hundred twenty thousand, two hundred seventy-one".