16481860378 has 4 divisors (see below), whose sum is σ = 24722790570. Its totient is φ = 8240930188.

The previous prime is 16481860363. The next prime is 16481860379. The reversal of 16481860378 is 87306818461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14550873129 + 1930987249 = 120627^2 + 43943^2 .

It is not an unprimeable number, because it can be changed into a prime (16481860379) 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 as a sum of consecutive naturals, namely, 4120465093 + ... + 4120465096.

Almost surely, 2^16481860378 is an apocalyptic number.

16481860378 is a deficient number, since it is larger than the sum of its proper divisors (8240930192).

16481860378 is an equidigital number, since it uses as much as digits as its factorization.

16481860378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240930191.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 16481860378 in words is "sixteen billion, four hundred eighty-one million, eight hundred sixty thousand, three hundred seventy-eight".