378876192188977 has 4 divisors (see below), whose sum is σ = 433001362501696. Its totient is φ = 324751021876260.

The previous prime is 378876192188969. The next prime is 378876192188981. The reversal of 378876192188977 is 779881291678873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 378876192188977 - 2³ = 378876192188969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378876192188891 and 378876192188900.

It is not an unprimeable number, because it can be changed into a prime (378876192188677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27062585156349 + ... + 27062585156362.

It is an arithmetic number, because the mean of its divisors is an integer number (108250340625424).

Almost surely, 2^{378876192188977} is an apocalyptic number.

It is an amenable number.

378876192188977 is a deficient number, since it is larger than the sum of its proper divisors (54125170312719).

378876192188977 is an equidigital number, since it uses as much as digits as its factorization.

378876192188977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54125170312718.

The product of its digits is 28677390336, while the sum is 91.

The spelling of 378876192188977 in words is "three hundred seventy-eight trillion, eight hundred seventy-six billion, one hundred ninety-two million, one hundred eighty-eight thousand, nine hundred seventy-seven".