8670643654 has 16 divisors (see below), whose sum is σ = 14495814000. Its totient is φ = 3865549824.

The previous prime is 8670643649. The next prime is 8670643669. The reversal of 8670643654 is 4563460768.

It is a super-2 number, since 2×8670643654² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8670643598 and 8670643607.

It is a congruent number.

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, 6710379 + ... + 6711670.

It is an arithmetic number, because the mean of its divisors is an integer number (905988375).

Almost surely, 2^8670643654 is an apocalyptic number.

8670643654 is a deficient number, since it is larger than the sum of its proper divisors (5825170346).

8670643654 is a wasteful number, since it uses less digits than its factorization.

8670643654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13422087.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The square root of 8670643654 is about 93116.2910236442. The cubic root of 8670643654 is about 2054.3941954462.

The spelling of 8670643654 in words is "eight billion, six hundred seventy million, six hundred forty-three thousand, six hundred fifty-four".