8645061654 has 24 divisors (see below), whose sum is σ = 19129500000. Its totient is φ = 2820374448.

The previous prime is 8645061619. The next prime is 8645061661. The reversal of 8645061654 is 4561605468.

8645061654 is a `hidden beast` number, since 86 + 4 + 506 + 1 + 65 + 4 = 666.

It is a super-2 number, since 2×8645061654² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5108529 + ... + 5110220.

It is an arithmetic number, because the mean of its divisors is an integer number (797062500).

Almost surely, 2^8645061654 is an apocalyptic number.

8645061654 is an abundant number, since it is smaller than the sum of its proper divisors (10484438346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8645061654 is a wasteful number, since it uses less digits than its factorization.

8645061654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10218804 (or 10218801 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 8645061654 is about 92978.8236858264. The cubic root of 8645061654 is about 2052.3717664256.

The spelling of 8645061654 in words is "eight billion, six hundred forty-five million, sixty-one thousand, six hundred fifty-four".