5495678642 has 4 divisors (see below), whose sum is σ = 8243517966. Its totient is φ = 2747839320.

The previous prime is 5495678641. The next prime is 5495678653. The reversal of 5495678642 is 2468765945.

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., 5236114321 + 259564321 = 72361^2 + 16111^2 .

It is a super-2 number, since 2×5495678642² = 60404967472269928328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5495678641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1373919659 + ... + 1373919662.

Almost surely, 2^5495678642 is an apocalyptic number.

5495678642 is a deficient number, since it is larger than the sum of its proper divisors (2747839324).

5495678642 is a wasteful number, since it uses less digits than its factorization.

5495678642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747839323.

The product of its digits is 14515200, while the sum is 56.

The square root of 5495678642 is about 74132.8445562424. The cubic root of 5495678642 is about 1764.7117465632.

The spelling of 5495678642 in words is "five billion, four hundred ninety-five million, six hundred seventy-eight thousand, six hundred forty-two".