8214580642 has 16 divisors (see below), whose sum is σ = 13114296792. Its totient is φ = 3845652480.

The previous prime is 8214580609. The next prime is 8214580657. The reversal of 8214580642 is 2460854128.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7921178001 + 293402641 = 89001^2 + 17129^2 .

It is a super-2 number, since 2×8214580642² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8214580595 and 8214580604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619359 + ... + 632482.

Almost surely, 2^8214580642 is an apocalyptic number.

8214580642 is a deficient number, since it is larger than the sum of its proper divisors (4899716150).

8214580642 is a wasteful number, since it uses less digits than its factorization.

8214580642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252053.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 8214580642 is about 90634.3237520974. The cubic root of 8214580642 is about 2017.7241828386.

The spelling of 8214580642 in words is "eight billion, two hundred fourteen million, five hundred eighty thousand, six hundred forty-two".