8624806642 has 4 divisors (see below), whose sum is σ = 12937209966. Its totient is φ = 4312403320.

The previous prime is 8624806627. The next prime is 8624806643. The reversal of 8624806642 is 2466084268.

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., 8315433721 + 309372921 = 91189^2 + 17589^2 .

It is a super-2 number, since 2×8624806642² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8624806592 and 8624806601.

It is not an unprimeable number, because it can be changed into a prime (8624806643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156201659 + ... + 2156201662.

Almost surely, 2^8624806642 is an apocalyptic number.

8624806642 is a deficient number, since it is larger than the sum of its proper divisors (4312403324).

8624806642 is a wasteful number, since it uses less digits than its factorization.

8624806642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312403323.

The product of its (nonzero) digits is 884736, while the sum is 46.

The square root of 8624806642 is about 92869.8370947209. The cubic root of 8624806642 is about 2050.7676397012.

The spelling of 8624806642 in words is "eight billion, six hundred twenty-four million, eight hundred six thousand, six hundred forty-two".