378860881865 has 8 divisors (see below), whose sum is σ = 474399713088. Its totient is φ = 289910935600.

The previous prime is 378860881853. The next prime is 378860881877. The reversal of 378860881865 is 568188068873.

It is an interprime number because it is at equal distance from previous prime (378860881853) and next prime (378860881877).

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

It is not a de Polignac number, because 378860881865 - 2⁶ = 378860881801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378860881795 and 378860881804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647221111 + ... + 1647221340.

It is an arithmetic number, because the mean of its divisors is an integer number (59299964136).

Almost surely, 2^378860881865 is an apocalyptic number.

It is an amenable number.

378860881865 is a deficient number, since it is larger than the sum of its proper divisors (95538831223).

378860881865 is a wasteful number, since it uses less digits than its factorization.

378860881865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294442479.

The product of its (nonzero) digits is 123863040, while the sum is 68.

The spelling of 378860881865 in words is "three hundred seventy-eight billion, eight hundred sixty million, eight hundred eighty-one thousand, eight hundred sixty-five".