16487314642 has 4 divisors (see below), whose sum is σ = 24730971966. Its totient is φ = 8243657320.

The previous prime is 16487314633. The next prime is 16487314673. The reversal of 16487314642 is 24641378461.

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., 13686894081 + 2800420561 = 116991^2 + 52919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16487314592 and 16487314601.

It is an unprimeable number.

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, 4121828659 + ... + 4121828662.

Almost surely, 2^16487314642 is an apocalyptic number.

16487314642 is a deficient number, since it is larger than the sum of its proper divisors (8243657324).

16487314642 is an equidigital number, since it uses as much as digits as its factorization.

16487314642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243657323.

The product of its digits is 774144, while the sum is 46.

The spelling of 16487314642 in words is "sixteen billion, four hundred eighty-seven million, three hundred fourteen thousand, six hundred forty-two".