54378681406 has 8 divisors (see below), whose sum is σ = 93220596720. Its totient is φ = 23305149168.

The previous prime is 54378681319. The next prime is 54378681407. The reversal of 54378681406 is 60418687345.

54378681406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54378681407) 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, 1942095751 + ... + 1942095778.

It is an arithmetic number, because the mean of its divisors is an integer number (11652574590).

Almost surely, 2^54378681406 is an apocalyptic number.

54378681406 is a deficient number, since it is larger than the sum of its proper divisors (38841915314).

54378681406 is a wasteful number, since it uses less digits than its factorization.

54378681406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884191538.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 54378681406 in words is "fifty-four billion, three hundred seventy-eight million, six hundred eighty-one thousand, four hundred six".