378856841046 has 16 divisors (see below), whose sum is σ = 770135218608. Its totient is φ = 124215357600.

The previous prime is 378856841021. The next prime is 378856841047. The reversal of 378856841046 is 640148658873.

It is a super-2 number, since 2×378856841046² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378856841047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517563625 + ... + 517564356.

It is an arithmetic number, because the mean of its divisors is an integer number (48133451163).

Almost surely, 2^378856841046 is an apocalyptic number.

378856841046 is an abundant number, since it is smaller than the sum of its proper divisors (391278377562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378856841046 is a wasteful number, since it uses less digits than its factorization.

378856841046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035128047.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 378856841046 in words is "three hundred seventy-eight billion, eight hundred fifty-six million, eight hundred forty-one thousand, forty-six".