54416639378 has 8 divisors (see below), whose sum is σ = 81630343740. Its totient is φ = 27206524800.

The previous prime is 54416639377. The next prime is 54416639383. The reversal of 54416639378 is 87393661445.

It can be written as a sum of positive squares in 2 ways, for example, as 51348919609 + 3067719769 = 226603^2 + 55387^2 .

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

It is a super-2 number, since 2×54416639378² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54416639377) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 859223 + ... + 920378.

Almost surely, 2^54416639378 is an apocalyptic number.

54416639378 is a deficient number, since it is larger than the sum of its proper divisors (27213704362).

54416639378 is a wasteful number, since it uses less digits than its factorization.

54416639378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794892.

The product of its digits is 13063680, while the sum is 56.

The spelling of 54416639378 in words is "fifty-four billion, four hundred sixteen million, six hundred thirty-nine thousand, three hundred seventy-eight".