378456654873 has 16 divisors (see below), whose sum is σ = 582863726016. Its totient is φ = 215875453440.

The previous prime is 378456654869. The next prime is 378456654883.

378456654873 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 378456654873 - 2² = 378456654869 is a prime.

It is a super-2 number, since 2×378456654873² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378456654883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337304836 + ... + 337305957.

It is an arithmetic number, because the mean of its divisors is an integer number (36428982876).

Almost surely, 2^378456654873 is an apocalyptic number.

378456654873 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

378456654873 is a deficient number, since it is larger than the sum of its proper divisors (204407071143).

378456654873 is a wasteful number, since it uses less digits than its factorization.

378456654873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674610824.

The product of its digits is 406425600, while the sum is 66.

The spelling of 378456654873 in words is "three hundred seventy-eight billion, four hundred fifty-six million, six hundred fifty-four thousand, eight hundred seventy-three".