378855064670 has 32 divisors (see below), whose sum is σ = 694187089920. Its totient is φ = 148840342560.

The previous prime is 378855064669. The next prime is 378855064681. The reversal of 378855064670 is 76460558873.

It is a super-2 number, since 2×378855064670² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104512 + ... + 1406291.

It is an arithmetic number, because the mean of its divisors is an integer number (21693346560).

Almost surely, 2^378855064670 is an apocalyptic number.

378855064670 is a deficient number, since it is larger than the sum of its proper divisors (315332025250).

378855064670 is a wasteful number, since it uses less digits than its factorization.

378855064670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511080.

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 378855064670 in words is "three hundred seventy-eight billion, eight hundred fifty-five million, sixty-four thousand, six hundred seventy".